试题与答案

气瓶的安全附件是否齐全和符合()。A、安全要求 B、附件标准 C、手续

题型:单项选择题

题目:

气瓶的安全附件是否齐全和符合()。

A、安全要求

B、附件标准

C、手续

答案:

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