U转车辆不能证明U转弯地点的，根据时速（）公里/小时计算行驶里程。A、50 B、60

Jane was asked a lot of questions,but she didn't answer ________ of them.[ ]

A. other  

B. any

C. none  

D. some

高速线材轧机按轧辊的支撑状况可分为（）两种。

A、大辊径、小辊径

B、15°/75°、45°

C、双支点、悬臂式

D、45°、平一立辊交替二辊式

液化气汽车装车采用的是（）流量计。

A、容积式流量计

B、质量流量计

C、涡轮流量计

D、速度式流量计

Questions 14-23

Look at the ten statements for this part.
·You will hear a passage about "Great Transformation. ". You will listen to it twice.
·Decide whether you think each statement is right(R), wrong(W) or not mentioned(NM).
·Mark your answers on the Answer Sheet

Transformation refers to change and information.

A．Right

B．Wrong

C．Not Mentioned

简述中国黑白花乳牛体型外貌和生产性能？