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问题 判断题

当基站收发共享一个天线而且同时发射两个频率时，波遇到系统中的金属异物时会产生高次谐波，该高次谐波会进入接收通带形成干扰，即无源交调。一般交调分量要低于接收机灵敏度10分贝。（）

答案

参考答案：对

选择题

不合理的发泄情绪的方式是[ ]

A、向他人倾诉

B、进行适当的运动

C、放声唱歌

D、迁怒于人，找替罪羊
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完形填空

小题1:The present came to the school in p_________.

小题2: We’ve r_________ the workers with machines.

小题3: John is a good student. It’s unlikely that he’ll s_______ classes.

小题4:He a_______ himself to the cold weather.

小题5: You can watch the match on the Internet in r_______ time.

小题6:Christmas is the most important t__________ festival in the western countries.

小题7:The teacher was s__________ with the boy’s answer.

小题8:Without her family’s s_______, she couldn’t achieved her goal.

小题9:She e_______ her younger daughter at home every day.

小题10: If you want to learn English well, you must first find a c______ teacher.
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