根据需要,异步电动机应装设低电压保护时,其电压动作值一般为电动机额定电压的( )。
A.60%~70%
B.60%~75%
C.65%~75%
D.70%~80%
参考答案:A
Wen Jiabao, premier of China, told the journalists at the press conference, " housing
price of China is far from reasonable at present."[ ]
A. 不填;不填
B. 不填;The
C. the;The
D. a; A
试述园林对隐逸文化的影响?