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单选题
油箱排气系统可根据需要让空气进出油箱。
A
The tank recirculating system lets the air in or out of the fuel tanks if necessary.
B
The tank absorbing system lets the air in or out of the fuel tanks as necessary.
C
The tank venting system lets the air in or out of the fuel tanks as necessary.
答案解析
正确答案：C
相关知识点：
油箱排气系统考点
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