以录音资料作为证据的,必须附具相应的文字整理资料。
参考答案:对
You surprise me! You ________ fall asleep in such an important meeting.
A.must
B.may
C.can
D.should
在6线网络上串接的QJJ后接点,CJ前接点,DGJ的前接点起什么作用?