从每小题的A、B、C、D四个选项中，找出所给单词的正确读音，并在答题卡上将该选项涂黑。

小题1:again

A．cabbage

B．narrow

C．famous

D．tradition小题2:conclusion

A．prison

B．impression

C．physician

D．pleasure小题3:enough

A．shout

B．rough

C．soul

D．outbreak小题4:through

A．feather

B．thief

C．smooth

D．southern小题5:rejected

A．wanted

B．refused

C．worked

D．challenged

喷雾时未完成排空原因（）.

A、喷雾压力低

B、喷头堵

C、双氧水杯灌注阀堵

D、空气过滤器堵