试题与答案

高压无气喷涂机,在喷涂燃点为21℃以下的易燃涂料时,必须()。

题型:填空题

题目:

高压无气喷涂机,在喷涂燃点为21℃以下的易燃涂料时,必须()。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:错

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A.demandedB.askedC.commandedD.tested
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