(38-39题共用备选答案) A.5min B.6min C.7min

书海库2020-05-20  22

问题 (38-39题共用备选答案)A.5minB.6minC.7minD.8minE.10min

选项 38.超声波清洗机连续清洗时间不应超过(  )。

答案B

解析
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