125 MW及以上的机组,应计及电动机反馈电流对电器和导体( )的影响。
A.热稳定; B.断路器的开断电流;C.动稳定; D.动、热稳定及断路器的开断电流。
参考答案:D
LD是由2种亚基组成的四聚体,共形成几种同工酶()
A.2种
B.3种
C.4种
D.5种
E.6种
The generative linguist is interested not only in ______ language but also in explaining language. In other words, they attempt to find the what as well as the why in the study of language.