无功消耗较大的工况包括()。
A.额定工况
B.稳态过负荷工况
C.最大降压工况
D.最大反送工况
参考答案:A, B, C, D
One minute she burst into_____, and the next she burst out_____. We just couldn't catch her mood at
any moment. [ ]
A. crying; laughter
B. tears; laughing
C. tears; laughter
D. crying; laughing
下列太阳系的成员中,属于类地行星的是:( )
A.水星
B.木星
C.天王星
D.土星