选煤方法种类很多，可概括分为两大类，即（）选煤。 A.干法 B._爱下问搜题

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问题多项选择题

选煤方法种类很多，可概括分为两大类，即（）选煤。

A.干法

B.粗碎

C.湿法

D.煤泥

答案

参考答案：A, C

选择题

Mr. Fan _____ this watch in 2005, he _____ it for 6 years. [ ]

A. bought, has had

B. bought, has

C. has bought, has had

D. has bought, had

单项选择题

美容刮痧操作时，对（）的顾客，最好不宜乱刮。

A.身体强壮

B.皮肤弹性良好

C.背部脊骨凸起

D.肌肉结实