主轴上的滑移齿轮Z=50向()移,使齿轮式离合器M2接合时,使主轴获得中、低转速。
A.左
B.右
C.上
D.下
参考答案:B
-Does the young man standing there the company?
-No.The company is his father. [ ]
A.in possession of;in possession of
B.take possession of;in the possession of
C.take possessions of;in possession of
D.have a possession of;in possession of
GDP从( )形态看,它是所有常住居民在一定时期内生产的全部货物和服务价值超过同期中间投入的全部非固定资产货物和服务价值的差额。
A.价值 B.收入 C.产品 D.消费