通信工程师：电信网络专业技术题库考点（考试必看） - 考试题库

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1、单项选择题

完形填空：下面的短文有l5处空白，请根据短文内容为每处空白确定l个最佳选项。

Obesity(肥胖) Causes Global Warming.

The list of ills attributable to obesity keeps growing: Last week, obese people were accused of causing global warming.

This ______(51)comes from Sheldon Jacobson of the University of Illinois, US, and a doctoral student, Laura McLay. Their study ______(52) how much extra gasoline is needed to haul fat Americans around. The answer, they say, is a billion gallons of gas per year. ______(53)

There has been ______(54) for taxes on junk food in recent years. US economist Martin Schmidt suggests a tax on fast food ______(55)to people’s cars. "We tax cigarettes partly because of their health cost," Schmidt said. "Similarly, leading a lazy life style will end ______(56) costing taxpayers more."

US political scientist Eric Oliver said his first instinct was to laugh at these gas and fast food arguments. But such ______(57) are getting attention.

At the US Obesity Society's annual meeting, one person ______(58) obesity with car accident death s, and another correlated obes ity with suicides. No one asked whether there was really a cause-and-effect relationship. " The funny thing was that everyone took it ______(59)." Oliver said.

In a 1960s study, children were ______(60) drawings of children with disabilities and without them, and a drawing of an obese child. They were asked ______(61) they would want for a friend? The obese child was picked last.Three researchers recently repeated the study ______(62) college students. Once again, ______(63) no one, not even obese people, liked the obese person. " Obesity was stigmatized." the researchers said.

But, researchers say, getting______ (64) is not like quitting smoking. People struggle to stop smoking, and, in the end, many succeed. 来源:91考试网 91EXAm.orgObesity is different. Science has shown that they have limited personal control over their weight Genes also______ (65) a part.

61.(单项选择题)

A.what
B.where
C.why
D.which

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2、问答题简述IP电话网主要采用哪几种技术。

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3、问答题阐述星形网结构的优缺点。

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4、问答题简述什么是通信网的数字化。

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5、填空题管理网是为提高全网质量和充分利用（）而设置的。

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6、问答题阐述固定电话网的组成。