Congress has left us in a very vulnerable position relying on the FRN.

国会已经离开了我们一个非常脆弱的位置，依靠的浮息票据。

Therefore, this study provides the evidence of reinforcement learning theory to explain FRN and extends the functional significance of P300.

所以本研究为FRN的强化学习理论解释提供了依据，并且扩展了P300的功能意义。