急性脑水肿大多发生在照射后（）。

A.24小时～7天

B.半年

C.半个月

D.12～24小时

E.1个月后

When additional or excess reserves are injected into the U.S. banking system, the money supply can potentially increase by an amount equal to the additional excess reserves multiplied by which of the following()

A. Reciprocal of one minus the required reserve ratio.

B. Reciprocal of the required reserve ratio.

C. Reciprocal of the potential deposit expansion multiplier.