_______ the best in a recent science competition, the three students were awarded scholarships ________21,000 dollars.

A．Judged; totaling

B．To be judged; totaled

C．Having judged; to total

D．judging; would total

如遇一般事故，项目负责人应迅速赶赴现场，做以下处理（）

A、向现场当事人了解事故发生的情况；

B、分析事故发生的原因；

C、采取必要、有效的措施；

D、以书面形式逐级向上汇报事故情况。