中 * * 对世界文明的发展做出了重大贡献，其中在世界上最早种植粟的是[ ]
A．元谋人
B．山顶洞人
C．河姆渡人
D．半坡人
答案：C
液压电梯液压泵站应设有压力指示，压力表的量程不应小于额定载荷时压力的()
A.110％
B.120％
C.140％
D.150％
The boy was so careless that the glass fell from his hand and it _____ on the floor.[ ]
A. broke in
B. broke down
C. broke up
D. broke out
