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单选题
120.内油箱中的紧急隔离活门的功用是: The inner tank emergency isolation valve function is
A
正常情况下打开,使内油箱前、后部分连通Normally open, connected the forward and afterward inner tank
B
紧急情况下关闭,使内油箱前、后部分隔离Sh ut down in case of emergency, isolated the forward and afterward inner tank
C
A、B都对 A, B answers are both right
答案解析
正确答案：C
解析：
题目解析
内油箱中的紧急隔离活门的功用是什么？
The inner tank emergency isolation valve function is:
答案: C. A、B都对 A, B answers are both right
解析: 题目要求解释内油箱中的紧急隔离活门的功能。正确答案C表示A和B两种说法都正确。即在正常情况下，活门是打开的，使内油箱前、后部分连通；而在紧急情况下，活门关闭，使内油箱前、后部分隔离。这两种情况的描述都是正确的。
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