单选题How are the pressure and temperature affected in a diesel engine cylinder during compression?（）APressure and temperature decreaseBPressure and temperature increaseCPressure decreases and temperature increasesDPressure increases and temperature decreases
单选题
How are the pressure and temperature affected in a diesel engine cylinder during compression?（）
A
Pressure and temperature decrease
B
Pressure and temperature increase
C
Pressure decreases and temperature increases
D
Pressure increases and temperature decreases
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