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Portland cement must pass a series of chemic and physic tests before it can be shipped.这句话没有语病,表意准确

A正确

B错误

正确答案:A (备注:此答案有误)

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  • 判断题

    Portland cement must pass a series of chemic and physic tests before it can be shipped.这句话没有语病,表意准确

    答案解析

  • 问答题

    must

    答案解析

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