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單項(xiàng)選擇題

In order to maintain a constant outlet water temperature of 80-85℃ from the engine, a three-way valve is installed()

A.at the jacket cooler outlet to control the flux through the engine
B.at the jacket cooler outlet to control the flux through the cooler
C.at the engine outlet to control the flux through the engine
D.at the engine inlet to control the flux through the engine

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