《规程》规定，矿井至少要有_______个安全出口。 -题库考试答案搜索网

《规程》规定，矿井至少要有_______个安全出口。

单选题

2021-09-02 13:15

A、2
B、3
C、4
D、5

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正确答案

A

试题解析

标签：联大河南理工大学矿井通风与安全课程设计

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__________ is the act performed by or resulting from saying something; it is the consequence of, or the change brought about by the utterance.

《规程》规定，矿井至少要有_______个安全出口。

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