运行中要经常监视电动机电流的变化,不许超过()。
A.额定电流;
B.0.5倍额定电流;
C.2倍额定电流;
D.1.5倍额定电流。
参考答案:A
More and more high-rise buildings have been built in big cities space.
A.in search of
B.in place of
C.for lack of
D.for fear of
局域网仿真