工作在（）的高度且有可能垂直坠落的即为高处作业。
A.2米及以上
B.3米及以上
C.4米及以上
D.5米及以上
参考答案：A
用所给词的填空 。
小题1:I think swimming is not as_______ (interest) as hiking.
小题2:However, the work_______ (it) is very difficult.
小题3:We all got off the coach_______ (quick) when we got there.
小题4:This digital camera is much_______ (expensive) than that one, right?
小题5:David is an_______(dishonest) boy, We all like to play with him.
拿法
