朝鲜族著名歌舞有（）。
A.长鼓舞
B.扇舞
C.农乐舞
D.摆手舞
参考答案：A, B, C
English is a language shared by several diverse cultures, each of _____ uses it somewhat differently. [ ]
A. which
B. what
C. them
D. those
往复式压缩机平面填料密封接口缝隙一般不小于1㎜，各圈填料开口应（）组装。
A、对齐
B、重合
C、任意角度错开
D、均匀错开
