单选题救生、消防、堵漏应急部署及演习制度规定,救生、消防演习应多少时间进行一次?()A每航次B半个月C一个月D二个月
单选题
救生、消防、堵漏应急部署及演习制度规定,救生、消防演习应多少时间进行一次?()
A
每航次
B
半个月
C
一个月
D
二个月
参考解析
解析:
暂无解析
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