变压器400V侧中性线上流过的最大不平衡电流,其值按国标规定,不超过额定电流( )。
A.15%
B.20%
C.25%
D.35%
参考答案:C
我国实行( ),这是我国既定的政策。
A.以市场供求为基础
B.以经济总量为基础
C.参考一篮子货币进行调节
D.有管理的浮动汇率制度
E.固定的汇率制度
The present situation of people’s abnormal behaviors speaks volumes for the fact that there is a a large number of people whose thinking is already out of ______.
A. tear B. gear C. fear D. smear