单项选择题
A.干的抹布B.潮的抹布C.铜制品D.都可以
A.慢速B.中速C.高速D.超高速
A.清洁液B.钳子C.油灰刀D.硬刷子
A.I’ll do it foor you now.B.I’ll bring it right away.C.Just a moment.I’ll do it now.D.I’m sorry I was so careless.
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