下列建设工程生产安全事故应急预案的具体内容中，属于现场处置方案的是()。

A.信息发布 

B.应急演练 

C.事故征兆 

D.经费保障

The school rules state that no child ___ be allowed out of the school during the day , unless accompanied by an adult .

A．may

B．dare

C．shall

D．must