排放超标的故障原因有喷油器喷油故障，传感器信号不准确，点火高压弱，（）等。
A.油泵损坏
B.油管破裂
C.触媒失效
D.无高压火
参考答案：C
苹果只在北方才能生长良好，而香蕉适宜在南方栽种。影响苹果、香蕉分布的主要生态因素是
A．光
B．温度
C．空气
D．水分
I hadn’t expected James to apologize but I had hoped _____ me.
A．him calling
B．that he would call
C．him to call
D．that he call
