When asked about their opinion about the schoolmaster ,many teachers would prefer to see him step aside __________ younger men.

A．in terms of

B．in need of

C．in favor of

D．in praise of

为保证迅速对事故作出有效的初始响应，并及时控制住事态，应急救援工作应坚持( )的原则。

A．先处理危险源
B．尽快做好现场恢复为主要目的
C．属地化为主
D．先组织营救受害人员为主