Virtually all (parts moving) of an automobile (need to be) lubricated (because),

游客2024-01-05  22

问题 Virtually all (parts moving) of an automobile (need to be) lubricated (because), without lubrication, friction (would increase) power consumption and damage the parts.

选项 A、parts moving
B、need to be
C、because
D、would increase

答案 A

解析
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