从事钢筋焊接施工的焊工只要以前每次焊接试验都合格,即可上岗操作。
参考答案:错
在平面直角坐标中,点P(-3,2009)在( )
A.第一象限
B.第二象限
C.第三象限
D.第四象限
We must do _____ work with _____ money. [ ]
A. many; much
B. more; less
C. much; fewer
D. fewer; least