单选题
引气泄漏探测系统是什么时候测试?When was the leak detection system tested?
A
在初始检查时 during originating check.
B
持续性测试 continuously tested.
C
每10分钟 every 10 minutes.
D
每30分钟 every 30 minutes.
答案解析
正确答案:B
题目纠错
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