Yuan Longping is a man who 1.w    the land, does his research and grows hybrid rice. He is an agricultural 2.p       . He 3.d      his whole life to finding ways to increase the rice output without 4.e       the area of fields. 5.T      to his research, more people can be free from 6.h     .Yuan is 7.s     with his life. He enjoys 8.l      to violin music. He cares little about his money and fame. He 9. t________ gives millions of yuan to 10. e_______     others for their research. He is a great person.

CA6140型车床横向快速移动为（）m/min。

A.2

B.3

C.4

D.5