U.S. presidents normally serve a(n) ______ term.A.two-yearB.four-yearC.six-yearD.eight-yea

外语类 英语考试 已帮助 人

U.S. presidents normally serve a(n) ______ term.

A.two-year

B.four-year

C.six-year

D.eight-year

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗