CDMA系统有哪些技术?

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问题:

CDMA系统有哪些技术?

考点:电子与通信技术通信原理通信原理题库
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When you want to go shopping, decide how much money you can spend for new clothes. Think about the kind of clothes you really need. Then look for those clothes on sale(销售).
There are labels(标签)inside all new clothes. The labels tell you how to take care of your clothes. The label for a shirt may tell you to wash it in warm water. A sweater label may tell you to wash by washing in cold water. The label on a coat may say “dry clean only.” Washing may ruin(损坏)this coat. If you do as the directions(说明)say on the label, you can keep your clothes looking their best. Many clothes today must be dry cleaned. Dry cleaning is expensive. When buying new clothes, check(核实)to see if they will need to be dry cleaned. You will save money if you buy clothes that can be washed.
You can save money if you buy clothes that are well made. Well-made clothes last longer. They look good even after they have been washed many times. Clothes that cost more money are not always better made. They do not always fit(合身)better. Sometimes less expensive clothes look and fit better than more expensive clothes.
小题1:If you want to save money you can buy clothes that _____.
A.don’t fit youB.don’t last long C.need to be dry cleanedD.can be washed
小题2:The label inside the clothes tells you______.
A.how to keep them looking their bestB.how to save money
C.whether they fit you or notD.where to get them dry cleaned
小题3:The first thing for you to do before you buy clothes is ______.
A.to look for well-made clothesB.to see how much money you can pay
C.to know how to wash themD.to read the labels inside them
小题4:We learn from the reading that cheaper clothes ______.
A.are always worse madeB.must be dry cleanedC.can not be washed
D.can sometimes fit you better
小题5:The best title(标题) for the reading should be ______.
A.Buying Less Expensive ClothesB.Taking Enough Money When Shopping
C.Being a Clever Clothes ShopperD.Choosing the Labels inside New Clothes
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治疗胁痛以下何组腧穴较优()。

A.足三里、三阴交

B.合谷、曲池

C.支沟、阳陵泉

D.内关、公孙

E.后溪、申脉

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生物呼吸作用的实质是(  )

A.完成氧气和二氧化碳的交换

B.及时排出细胞产生的二氧化碳

C.分解有机物,释放能量

D.使有机物贮存在生物体内

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一般可拆卸的齿轮与轴的配合为()配合。

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民族自治地方的人民代表大会有权依照(),制定自治条例和单行条例。

A.当地民族的政治、经济和文化的特点

B.当地民族的经济和社会发展状况

C.当地民族的社会各项事业的发展情况

D.当地民族的人文环境

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