农业生产资料最基本的是( )
A．技术 B．耕地C．工具 D．市场
参考答案：B
I am going to Qingdao and stay there for a week. _____ you are there, would you please
buy some books for me? [ ]
A. If
B. While
C. Since
D. As soon as
中小企业较多采用的设备维修的组织形式是（）
A.集中维修
B.分区维修
C.部门维修
D.混合维修
