His wish was a scientist. [ ]
A. to becomes
B. becomes
C. become
D. to become
答案:D
动脑筋想一想,做一做。
△+△+☆= 20
☆+☆+△+△= 30
△=( ),☆=( )
进行质量控制的有效方法是设置工序质量控制点,其目的是()
A.加强重点部位和重点工序质量控制
B.贯彻预防为主的基本要求
C.及时掌握施工质量总体状况
D.动态合理安排劳动力,提高作业效率