按照来源，总供给可以划分为( )。A．产品供给和服务供给 B．_爱下问搜题

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问题单项选择题

按照来源，总供给可以划分为( )。

A．产品供给和服务供给

B．消费品供给和投资品供给

C．国内供给和国际供给

D．潜在供给和实现供给

答案

参考答案：C

解析：[解题要点] P 2总供给。总供给的构成，根据不同的标准，可以从不同角度进行划分：(1)按照供给物形态，可以划分为产品供给和服务供给；(2)按照最终用途，可以划分为消费品供给和投资品供给；(3)按照来源，可以划分为国内供给和国际供给。

完形填空

Today’s young people are taking a more active part in online activities. Although the Internet can be    for students to collect information and communicate（交流）with their friends, teachers and parents are becoming more and more     about the unhealthy web content（网上内容）in the bar. They think that the birth of “Harm-free Internet Bars”（健康网吧）is    step to    teenagers.
It was Sunday afternoon and there were not many      seats left in the Feiyu Internet Bar. A few       were found playing    . A person of the bar was walking around       Internet users’ online activities.
“My job is to find anyone who is looking at       websites and then     them from doing so,” he said. “This is a       of the ‘Harm-free Internet Bar’ project”. Feiyu, a famous Internet bar in Beijing is among the first 19 to      the harm-free Internet bar club.
In order to help start a better     for teenagers’ online activities, China’s Communist Youth League has brought out the program named “Harm-free Internet Bar for Teens”.
But while teachers and parents     the “harm-free Internet bars”,   do many school students think of them?

D．interesting

C．an important

D．an impossible

A．comfortable

D．online games

A．interesting

B．environment

C．Internet bar

A．complain about

B．worry about

单项选择题

雷尼替丁

A．可使驾驶员视力模糊或辨色困难
B．可导致驾驶员多尿或多汗的
C．可使驾驶员出现定向力障碍
D．可使驾驶员出现眩晕和幻觉
E．可引起驾驶员嗜睡