单项选择题
A．The woman saw a horror movie.
B．The woman enjoyed the movie very much.
C．The man went to the show with the woman.
D．The man asked the woman to be careful at night.
单项选择题 M: Only one student in my class got above 90 points in the test. How about your class? Since there are more old students in your class, I’m sure they must have done a much better job.W: About 6 or 7 of them. But there are still some students who failed.Q: What can we infer from the conversation?（）
多项选择题 有（）情况之一时，不得排放瓦斯。
多项选择题 在煤矿防尘技术实施中采用的减尘技术有（）。