All of the machinery must be carefully inspected before production at the plant is allowed to____.

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问题 All of the machinery must be carefully inspected before production at the plant is allowed to____.

选项 A、inhibit
B、comply
C、motivate
D、proceed

答案D

解析 分析整句的意思,before引导的状语从句表示“准许进行生产”,因此意为“进行”的D为正确答案。
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