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【判断题】
钢筋检测仪检测前，应对钢筋探测仪进行预热和调零，调零时探头应远离非金属物体。在检测过程中，应核查钢筋探侧仪的零点状态。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】The backup and recovery tools must be______to deal with various computer crises.
【简答题】Today's bellman must be quick witted, good with people, and outgoing. Bellhops will meet a variety of different people each day and must have the social skills to deal with them.
【单选题】Some actions must be ________ to deal with this big change in the labour market.
A.
take
B.
taken
C.
took
D.
Taking
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