现金发行量,是指银行投放出动的现金和收回现金轧差后,净投放到社会上的那部分现金,又被称为( )。
A.市场货币流通量
B.货币供应量
C.货币需求量
D.市场货币供求量
参考答案:A
在等差数列{an}中,若a2+a4+a6+a8+a10=80,则a7-a8的值为________;
-Have all the students known that we will have an English exam this Saturday?
-Yes. Every student about it. [ ]
A. tells
B. told
C. was told
D. has told