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单选题
389.系统内的所有流量控制装置,如单向活门、燃油泵、储压器和继电器均应包括在内。
A
All flow control devices within the system,such as check valves,fuel pumps,accumulators, and relays should be included.
B
All flue control devices within the system, such as single valves, fuel pumps, storage, and relays should be included.
C
All flow control devices within the system, such as single valves,fuel pumps,accumulators, and relays should be included.
答案解析
正确答案：A
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