因配风过大引起催化剂着火，应（）。（KHD：事故判断处理及应变能力，th=239）
参考答案：调小气风比，关小进该转化器高掺阀，必要时转化器进N2降温
Not only_______polluted but________crowded.
A．was the city,were the streets
B．the city was,were the streets
C．was the city,the streets were
D．the city was,the streets were
下列哪种情况属于成交不买的行为
