立井中升降人员和物料的缠绕式提升机，卷筒上缠绳（）层。
A.1；
B.2；
C.3；
D.4。
参考答案：A
—How much water is there in the glass?
—Only _____. [ ]
A. a few
B. few
C. a little
在庄重和悲伤的场合怎样着装？
