单选

When a ship's low-pressure CO2 fixed fire extinguishing system is activated from a remote location，what determines the quantity of CO2 being released into a selected space ________．

A.The number of discharge nozzles in the space determines the quantity released
B.The discharge will continue until the temperature of the space returns to its normal ambient temperature
C.The main CO2 tank is partitioned into sections that are individually designated for each of the protected spaces
D.A pneumatic timer controls each discharge selector valve，and is preset for each space

试题出自试卷《航海英语(甲类船长)海上应急单选题练习1》

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