Speaking of public health,the spokesman says Chinese government will go all out to        

_____product quality,especially food safety. 

A．confirm

B．ensure

C．devote

D．commit

工资调控政策最常见的类型是（）。

A.导向政策

B.保护政策

C.谈判政策

D.公平政策

E.收入平等化政策