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问题 单项选择题

告诉你一个电话号码，你可以按照它去拨号，但打过以后，再问你该号码，你又不记得了。这是（）

A.瞬时记忆表现

B.感觉记忆表现

C.短时记忆表现

D.长时记忆表现

答案

参考答案：C

单项选择题

CMS52测试仪在发射机测试状态下，屏幕上“COUNT”显示区显示的内容为（）。

A、载波频率或误差值

B、载波输出功率

C、音频失真

D、调制频偏
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单项选择题

Expressing gratitude is an important form of good manners. Nowadays more and more people in China have found it’ s high time to (16) a thankful heart for the young.

Everyone likes to get praised and appreciated. Gratitude is the greatest of virtues, which lets others smile and makes the world more beautiful. You just need several minutes to write down a thank-you note, but it brings much joy to the (17) .

We live in a society where we enjoy the different services of others. But (18) of them should be taken for granted.

Gratitude is also a kind of (19) in life. In developing gratitude for every moment--for the simple joys and even for the (20) times--we come to truly enjoy and appreciate life. Then we are able to see the (21) that surrounds us.

Try to write a thank-you letter to your parents for working hard to (22) you a happy life.

Be grateful to your teachers because of their (23) with your studies and character building.

Say thanks to your friends who (24) both your happiness and sorrow. We are sure it will bring them much joy and add (25) into your own life as well.

22（）

A.offer 

B.produce 

C.imagine 

D.try
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