Cargo pump relief valves are piped to the（）.<br>A:cargo pump pressure gauges<br>B:crossover lines interconnecting two pumps<br>C:suction side of pumps<br>D:atmosphere through pump vents

Cargo pump relief valves are piped to the（）.
A:cargo pump pressure gauges
B:crossover lines interconnecting two pumps
C:suction side of pumps
D:atmosphere through pump vents

出自：海船船员证

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