串联系统可靠性()。
A.大于同样单元组成的并联系统的可靠性
B.大于组成单元的可靠性
C.大于同样单元组成的串并联系统的可靠性
D.以上三个说法都不正确
参考答案:D
—Could you please tell me _____?
—Go upstairs and turn left.
A. what is the teacher's office
B. what the teacher's office is
C. where is the teacher's office
D. where the teacher's office is
中央银行在经济衰退时,( )法定存款准备金率。
A.调高
B.降低
C.不改变
D.取消