The most successful sharers—those whose data are downloaded and cited the most often—get noticed, and their work gets used.
出自-2017年6月阅读原文
Students use forums to chat, play games, and solve problems together at no cost, or they can pay a few hundred dollars to take courses with trained teachers.
出自-2017年6月阅读原文
Setting the right carbon price will therefore efficiently align the costs paid by carbon users with the true social opportunity cost of using carbon.
出自-2017年6月阅读原文
Researchers in Germany used miniature GPS tags to track the migrations of 70 white storks ( ' , 鹳) from different sites across Europe and Asia during the first five months of their lives.
出自-2017年6月阅读原文
Physical punishment is used much less by well-educated parents.
出自-2017年6月阅读原文
People used to live near people of different income levels; neighborhoods are now more segregated by income.
出自-2017年6月阅读原文
It is urgent for governments to increase the cost of using fossil fuels to an appropriate level to lessen the catastrophic effects of climate change.
出自-2017年6月阅读原文
I'd much prefer to have my data used by the maximum number of people to ask their own questions, she says.
出自-2017年6月阅读原文
Data on management expenses at the college system and in other state departments will be part of a business justification the state will use as officials deliberate the specifics of an outsourcing plan.
出自-2017年6月阅读原文
Coal and natural gas are mainly used for electricity generation, whereas oil is used mostly to power transportation, yet the prices of all these energy sources are linked.
出自-2017年6月阅读原文
A tax on upstream carbon sources is one easy way to put a price on carbon emissions, although some countries may wish to use other methods, such as emissions trading schemes.
出自-2017年6月阅读原文
Sweden was the first European country to print and use paper money, but it may soon do away with physical currencies.
出自-2017年6月听力原文
In an era of instant information, shoppers can use their mobile phones to find deals.
出自-2017年6月听力原文
For years, many of us have relied on antibiotic use to treat various infections.
出自-2017年6月听力原文
And the reality is that antibiotics have been responsible for saving millions of lives since penicillin, one of the earliest antibiotics, was first used on a clinical basis 70 years ago.
出自-2017年6月听力原文
When this water is used for agricultural irrigation, farmers risk absorbing disease-causing bacteria, as do consumers who eat the produce raw and unwashed.
出自-2016年6月阅读原文
We need to accept that fact across much of the planet, so waste with little or no treatment will be used in agriculture for good reason.
出自-2016年6月阅读原文
They also, however, use far more natural resources—fuel, water ( ' , all those baths and golf courses) and building materials.
出自-2016年6月阅读原文
The one in the House bill would have to negotiate rates with providers, rather than using Medicare rates, as many reformers wanted.
出自-2016年6月阅读原文
The commission's revised Green Guides warn marketers against using labels that make broad claims, like eco-friendly.
出自-2016年6月阅读原文
One recent study attempted to calculate the extent of this ecological overshoot of the human economy, and found that we are using 1.2 Earth's-worth of environmental goods and services—the implication being that at some point the debt will be called in, and all those services—the things which the planet does for us for free—will grind to a halt.
出自-2016年6月阅读原文
My own research at the Stanford Center on Adolescence uses in-depth interviews with small samples of youngsters rather than large-scale surveys.
出自-2016年6月阅读原文
Measuring emissions is not a precise science, particularly when it comes to issues surrounding land use; not all nations have released up-to-date data, and in any case, emissions from some sectors such as aviation are not included in national statistics.
出自-2016年6月阅读原文
It is also the reason why development agencies are not united in their view of environmental issues; while some, like the WRI, maintain that environmental progress needs to go hand-inhand with economic development, others argue that the priority is to build a thriving economy, and then use the wealth created to tackle environmental degradation.
出自-2016年6月阅读原文
Irrigation is the primary agricultural use of human waste in the developing world.
出自-2016年6月阅读原文
Interactive television advertising, which allows viewers to use their remote controls to click on advertisements, has been pushed for years.
出自-2016年6月阅读原文
In most cases, the human waste is used on grain crops, which are eventually cooked, minimizing the risk of transmitting water-borne diseases.
出自-2016年6月阅读原文
In cases where sewage mud is used, expensive chemical fertilizer use can be avoided.
出自-2016年6月阅读原文
In 2008 and 2009, class-action lawsuits ( ' , 集体诉讼) were filed against SC Johnson for using Greenlist labels on its cleaning products.
出自-2016年6月阅读原文
Facing water shortages and escalating fertilizer costs, farmers in developing countries are using raw sewage ( ' , 下 水道污水) to irrigate and fertilize nearly 49 million acres of cropland, according to a new report—and it may not be a bad thing.
出自-2016年6月阅读原文
By and large, these are very nice kids, and as the band The Who used to sing, The kids are alright.
出自-2016年6月阅读原文
But, instead, the Chicago union seems to be using its political capital primarily to protect weak performers.
出自-2016年6月阅读原文
But there are also many examples of growing wealth by trashing the environment, in rich and poor parts of the world alike, whether through unregulated mineral extraction, drastic water use for agriculture, slash-and-burn farming, or fossil-fuel-guzzling ( ' , 大量消耗) transport.
出自-2016年6月阅读原文
But Pay Drechsel, an environmental scientist, argues that the social and economic benefits of using untreated human waste to grow food outweigh the health risks.
出自-2016年6月阅读原文
As a result, the bills do not require, as they should, that the results of these studies be used to set payment rates in Medicare.
出自-2016年6月阅读原文
A handful of lawsuits have been filed in recent years against companies accused of using misleading environmental labels.
出自-2016年6月阅读原文
We need more funding and more effort to return these languages to everyday use, says Fred Nowuski of the National Museum of the American Indian, We are making progress but money needs to be spent on revitalising languages, not just documenting them.
出自-2016年6月听力原文
And that’s not really the way they’re used in this country.
出自-2016年6月听力原文
a basis for explaining human genetic diversityan aid to understanding different populationsan explanation for social and cultural differencesa term to describe individual human characteristicsmodern genetics research is likely to fuel racial conflictsrace is a poorly defined marker of human genetic diversityrace as a biological term can explain human genetic diversitygenetics research should consider social and cultural variablesit is absolutely necessary to put race aside in making diagnosisit is important to include social variables in genetics researchracial categories for genetic diversity could lead to wrong clinical predictionsdiscrimination against black people may cause negligence in clinical treatmentThey be more precise with the language they use.
出自-2016年12月阅读原文
While we argue phasing out racial terminology ( ' , 术语 ) in the biological sciences, we also acknowledge that using race as a political or social category to study racism, although filled with lots of challenges, remains necessary given our need to understand how structural inequities and discrimination produce health disparities ( ' , 差异 ) between groups, Yudell said.
出自-2016年12月阅读原文
While most parents, teachers and clinicians would react to an adolescent using drugs or getting drunk, they may easily overlook teenagers who are engaging in inconspicuous behaviors.
出自-2016年12月阅读原文
They refrain from using politically sensitive terms.
出自-2016年12月阅读原文
Their risky behaviors—drinking too much alcohol, using illegal drugs, smoking cigarettes and skipping school—can alert parents and teachers that serious problems are brewing.
出自-2016年12月阅读原文
The problem isn't the technology itself, but that the technology is being used to create more flexibility for the employer rather than the employee.
出自-2016年12月阅读原文
The study's authors surveyed 12,395 students and analyzed nine risk behaviors, including excessive alcohol use, illegal drug use, heavy smoking, high media use and truancy ( ' , 逃学 ).
出自-2016年12月阅读原文
Teenagers experiencing psychological problems tend to use a lot of media.
出自-2016年12月阅读原文
South Korea opened its second Antarctic research base in 2014, describing it as a way to test robots developed by Korean researchers for use in extreme conditions.
出自-2016年12月阅读原文
So what other variables could be used if the racial concept is thrown out? Yudell said scientists need to get more specific with their language, perhaps using terms like ancestry or population that might more precisely reflect the relationship between humans and their genes, on both the individual and population level.
出自-2016年12月阅读原文
Not to be outdone, India's futuristic new Bharathi base, built on stills ( ' , 桩子) using 134 interlocking shipping containers, resembles a spaceship.
出自-2016年12月阅读原文
In the paper, he and his colleagues used the example of cystic fibrosis, which is underdiagnosed in people of African ancestry because it is thought of as a white disease.
出自-2016年12月阅读原文
In a competitive work environment, employers are able to use technology to demand more from their employees rather than motivating workers with flexibility that benefits them.
出自-2016年12月阅读原文
Full-time employees who do have paid vacation days only use half of them on average.
出自-2016年12月阅读原文
Flexibility resulting from the use of digital devices benefits employers instead of employees.
出自-2016年12月阅读原文
Even among people who have bought connected devices of some kind, 37 percent said that they are going to be more cautious about using these devices and services in the future.
出自-2016年12月阅读原文
E.B.Du Bois was concerned that race was being used as a biological explanation for what he understood to be social and cultural differences between different populations of people.
出自-2016年12月阅读原文
But a new study finds that there's another group of adolescents who are in nearly as much danger of experiencing the same psychiatric symptoms: teens who use tons of media, don't get enough sleep and have a sedentary ( ' , 不爱活动的 ) lifestyle.
出自-2016年12月阅读原文
83% of workers say they're stressed about their jobs, nearly 50% say work-related stress is interfering with their sleep, and 60% use their smartphones to check in with work outside of normal working hours.
出自-2016年12月阅读原文
And the New Yorkers who spent a bundle on an outdoor hot tub now admit they rarely use it, because we can’t afford to heat it in winter.
出自-2016年12月听力原文
Using existing civil society structures or networks is a more effective way of creating change.
出自-2015年12月阅读原文
They may have to use less effective drugs.
出自-2015年12月阅读原文
These students need to build skills and knowledge during college if they are to use their degrees as a stepping- stone to middle-class mobility.
出自-2015年12月阅读原文
Take your average trade union member, chances are they will be politically motivated and be used to collective action— much like Erica Gregory.
出自-2015年12月阅读原文
Specific medicines to be used.
出自-2015年12月阅读原文
Should doctors consider Medicare's budget in deciding what to use?I think ethically(在道德层面上) we are just worried about the patient in front of us and not trying to save money for the insurance industry or society as a whole, said Dr.Donald Jensen.Still
出自-2015年12月阅读原文
Professor Weber believes that environmental policy can make use of similar tactics.
出自-2015年12月阅读原文
Other studies show that simply providing the facility for people to compare their energy use with the local average is enough to cause them to modify their behaviour.
出自-2015年12月阅读原文
Medicare could save hundreds of millions of dollars a year if everyone used the cheaper drug, Avastin, instead of the costlier one, Lucentis.
出自-2015年12月阅读原文
Medical society guidelines are also used by insurance companies to help determine reimbursement ( ' , 报销 ) policies.
出自-2015年12月阅读原文
Make full use of informal learning resources.
出自-2015年12月阅读原文
If the CFL should be used for lighting a particular space, or an object within that space, the fixture must be designed to work with that lamp, and that fixture with the room.
出自-2015年12月阅读原文
Hall's findings suggest there's an argument to be made for electing to use African American, though one can't help but get the sense that it's a decision that papers over the urgency of continued progress.
出自-2015年12月阅读原文
But the Food and Drug Administration has not approved Avastin for use in the eye, and using it rather than the alternative, Lucentis, might carry an additional, although slight, safety risk.
出自-2015年12月阅读原文
But it was the ones that mentioned the actions of neighbours that drove down power use.
出自-2015年12月阅读原文
The agency createsadvertisements and develops a media plan, specifying which media will be used and in which proportions.
出自-2015年12月听力原文
Some of the heat is used directly or produces useful work; the rest is lost or rejected, radiated into the atmosphere from the engines, motors, boilers and all the energy-consuming machinery that makes American’s wheel go around.
出自-2015年12月听力原文
Scientists have devised a way to determine roughly where a person has lived using a strand of hair, a technique that could help track the movements of criminal suspects or unidentified murdervictims.
出自-2015年12月听力原文
If we could figure out how to improve the efficiency with which we use energy, we can do a lot of work with the energy that is available.
出自-2015年12月听力原文
He believes that team corporation results when members go beyond their individual capabilities, beyond what each is used to being and doing.
出自-2015年12月听力原文
Every year, people in America use energy equal to over 30million barrels of oil each day.
出自-2015年12月听力原文
Better design and wiseruser of both mass transit systems and private vehicles will playing an important part in helping America get more out of energy used fortransportation.
出自-2015年12月听力原文
Although large companies could easily set up their own advertising departments, write their own advertisements andbuy media space themselves, they tend to use the services of largeadvertising agencies.
出自-2015年12月听力原文
According to the Centre for Strategic and International Studies,about three quarter of energy we use to move things, including ourselves, accomplishes no useful work.
出自-2015年12月听力原文
\AI is hugely exciting,\ she said, \but it has limitations, which present grave dangers given uncritical use.\
2019年6月六级真题(第一套)阅读 Section C
83% of workers say they're stressed about their jobs, nearly 50% say work-related stress is interfering with their sleep, and 60% use their smartphones to check in with work outside of normal working hours.
2016年12月六级真题(第一套)阅读 Section B
A quarter of students report that their use of digital devices during class causes their grades to suffer .
2018年12月六级真题(第二套)阅读
Across the developed world, ear use is in decline as more people move to city centers, while young people especially are opting for other means of travel.
2019年12月六级真题(第二套)阅读 Section A
Although the American Academy of Pediatrics offers guidelines recommending that parents model appropriate social media use for their children, it does not explicitly discuss oversharing by parents.
2018年12月六级真题(第三套)阅读 Section B
Apple's stance on these issues emerged post-Snowden, when the company started putting in place a series of technologies that, by default, make use of encryption to limit access to people's data.
2017年12月六级真题(第三套)阅读 Section B
As she wrote in her description of the peacock flower,\ The Indians, who are not treated well by their Dutch masters, use the seeds to abort their children, so that they will not become slaves like themselves.
2018年12月六级真题(第二套)阅读 Section B
As wood was so plentiful, it was cheaper to use than the stone used in the buildings of other European cultures.
2019年12月六级真题(第一套)听力 Section C
Because previous research has shown that people with high intellectual abilities are better at filtering out distractions, researchers believed students with high ACT scores would not show a significant decrease in performance due to their use of digital
2018年12月六级真题(第二套)阅读
Both bus tours forbade the use of cell phones but one tour provided digital cameras and encouraged people to take photos.
2018年6月六级真题(第二套)阅读 Section C
But frequently my tech use was not so benign.
2017年12月六级真题(第一套)阅读 Section B
But once these plants use up their stored reserve or tap out the underground supply, they cease growing and start to die.
2018年6月六级真题(第一套)阅读 Section B
But there are also many examples of growing wealth by trashing the environment, in rich and poor parts of the world alike, whether through unregulated mineral extraction, drastic water use for agriculture, slash-and-burn farming, or fossil-fuel-guzzling t
2016年6月六级真题(第三套)阅读 Section B
Companies play a big role in creating a circular economy, in which value is generating less from extracting new resources and more from getting better use out of the resources we already have.
2019年6月六级真题(第二套)阅读 Section B
Companies play a big role in creating a circular economy, in which value is generating less from extracting new resources and more from getting better use out of the resources we already have—but they must also get customers engaged in the process.
2019年6月六级真题(第二套)阅读 Section B
Data on management expenses at the college system and in other state departments will be part of a \business justification\ the state will use as officials deliberate the specifics of an outsourcing plan.
2017年6月六级真题(第二套)阅读 Section C
Farmers and consumers alike can choose whether or not to use whichever version prevails: \I'm giving people an option.\
2018年6月六级真题(第一套)阅读 Section B
Farrant and others in the resurrection business got together last year to discuss the best species of resurrection plant to use as a lab model.
2018年6月六级真题(第一套)阅读 Section B