在垂直位置进行碳弧气刨时应由下向上移动，便于熔渣流出。( )
参考答案：错
It seems that I have seen this man somewhere before, but now I can’t remember I came across him.
A．where was it that
B．where it was that
C．that it was where
D．that was it where
在社区健康促进中，可开发利用的社区资源不包括（）。
A.政策资源
B.财力资源
C.信息资源
D.物力资源
E.时间资源
