_______air pollution getting worse, the government needs to come up with some effective measures to deal with it.

A．Because

B．For

C．As

D．With

下列哪些是中队长的职责。（）

A.负责中队的技术工作

B.负责中队全面领导工作

C.负责中队总结评比工作

D.参与制订救援方案