单选题Cargo pump relief valves are piped to the（）.Acargo pump pressure gaugesBcrossover lines interconnecting two pumpsCsuction side of pumpsDatmosphere through pump vents
单选题
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
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