在建立警戒区域时，不必要把警戒区的污染区内与事故无关的人员撤离。
参考答案：错
—Oh,Mary!You should do your work instead of sitting here watching TV.
—__________
A．That’s not a very good idea.
B．TV produces good influence on children.
C．What makes you say that?
D．You said TV was educational.
