当压缩机无油或油位太低时,会造成压缩机()。
A、爆炸
B、低温
C、超温
D、不运转
参考答案:C
关于五带的说法,北温带位于[ ]
A.南北回归线之间
B.南北极圈之间
C.南回归线与南极圈之间
D.北回归线与北极圈之间
----Do you think it wise for Chinese mothers to try to do everything for their children?
----No, that’s they are mistaken.
A.what
B.when
C.where
D.how