具有使货币总量成倍扩张或收缩能力的货币是指（）。
A.基础货币
B.M0
C.M1
D.M2
参考答案：A
—Tom didn't go to school this morning, did he?
—_____, though he was not feeling very well. [ ]
A. No. he didn't
B. Yes, he did
C. No, he doesn't
D. Yes, he does
屏、柜安装盘间接缝误差＜（）mm
A.1
B.2
C.3
D.5
