- 搜標(biāo)題
- 搜題干
- 搜選項(xiàng)
單項(xiàng)選擇題
In a four-stroke/cycle diesel engine, after the completion of the power stroke, the piston will move（）
A.up and draw in a fresh air charge
B.down to burn off fuel
C.down to compress the fuel air charge
D.up and force out the exhaust gases
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