题目内容

Hydraulic brake system utilize _____ to transfer force from the drive’s foot to the brake shoes.

A. air
B. liquid
C. solid
D. linkage

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In an automatic transmission,______ are changed automatically.

A. torque
B. directions
C. shifts
D. gear ratios

______ suspend the body and associated parts.

A. Suspension system
B. air brake system
C. hydraulic system
D. parking system

Power train

Manual transmission