单选题The crankshaft receives and transmits the full working power of the engine and is subjected to fluctuating （）.Abending stresses弯曲应力Btorsion stresses扭转应力Cshear stresses剪应力DAll of the above
单选题
The crankshaft receives and transmits the full working power of the engine and is subjected to fluctuating （）.
A
bending stresses弯曲应力
B
torsion stresses扭转应力
C
shear stresses剪应力
D
All of the above
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