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单选题
1891. The air-oil cooler is a heat exchanger that uses a flow of ambient air to remove heat from engine lubricating oil
A
After passing through the air-oil cooler, the temperature of the engine oil decreases.
B
The air-oil cooler uses engine oil to remove heat from ambient air.
C
After passing through the air-oil cooler, the temperature of the engine oil increases.
答案解析
正确答案：A
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