问题
单项选择题
The sprinkler system of a survival craft is used to（）.
A.cool the craft in a fire
B.cool the engine
C.spray oil on the sea to calm it
D.spray personnel during a fire
答案
参考答案：A
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The sprinkler system of a survival craft is used to（）.
A.cool the craft in a fire
B.cool the engine
C.spray oil on the sea to calm it
D.spray personnel during a fire
参考答案：A