【单选题】虽然后天性梅毒分为三期,但其中传染性最强的阶段是
【单选题】根据成因沉积岩的颜色可分为()色、原生色和次生色。
【判断题】根据岩石成因可将组成地壳的岩石分为岩浆岩、沉积岩、变质岩。
【多选题】沉积岩的颜色根据成因分为: 和 ,其中原生色又分为 和 。。
【多选题】根据沉积岩的成因,可将沉积岩分为: 、 , , 。
【单选题】The Fed is reluctant to use reserve requirements to control the money supply and interest rates because
A.
they have the potential to create lending problems for banks with high excess reserves.
B.
frequent changes in reserve requirements complicate liquidity management for banks.
C.
of their weak impact on the money supply.
D.
of only (a) and (b) of the above.
【单选题】Other things the same if reserve requirements are decreased, the reserve ratio ( )
A.
decreases, the money multiplier increases, and the money supply decreases.
B.
increases, the money multiplier increases, and the money supply increases.
C.
decreases, the money multiplier increases, and the money supply increases.
D.
increases, the money multiplier increases, and the money supply decreases.