题目内容

The main components of an engine are ___, _, _, ___ and valves.

A. cylinder block
B. pistons
C. connecting rods
D. crankshaft

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Today’s automotive engines can be classified in several ways depending on the following design features:__, _, and __.

A. Operational cycles
B. Number of cylinders
Cylinder arrangement
D. Valvetrain type

Please match the following technical terms with the corresponding Chinese translation.

The commonly used specifications of an engine are the size, compression ratio, torque and power of an engine.

A. 对
B. 错

５种竞争力量分析模型