题目内容

Modem的作用是

A. 把计算机信号和音频信号互相转换
B. 把计算机信号转换为音频信号
C. 把音频信号转换为计算机信号
D. 防止外部病毒进入计算机中

查看答案

搜索结果不匹配？点我反馈

更多问题

E Beijing is to spend up to ＄20 billion to change the Chinese capital into a 21 st-century one for the 2008 Olympics. The government managed to host the 2008 Olympics. The general aim is for Beijing to have the same environmental standards as Paris, London or Washington by 2008. Hundreds of millions of dollars will be spent piping natural gas to the city’s homes and taking away dirty coal burning gradually while 60, 000 buses will be changed to liquefied gas. The money will also be used for relocating the polluting factories and building green belts. By 2008 around 90 percent of Beijing’s waste will be treated, compared to only 40 percent at present. Olympic officials have already announced that around 50 large projects are being dealt with to improve traffic congestion and cut down pollution, They include the construction of Beijing’s first light railway, a 40.5-kilometer line which is expected to be completed in 2005. Beijing, besides, plans to build an 82.25-kilometer-long subway to add to the existing 53 kilometers. Nine major roads will be rebuilt or widened. Beijing also plans to build a 70-meter-wide green belt among the waterways to protect the water quality as well as to increase the green areas. Which of the following is true according to the passage

A. The environment of London is better than that of Toronto.
B. In the first paragraph "a 21 st-century one" refers to a modern and advanced capital.
C. Beijing is badly polluted mainly by coal burning.
D. Liquefied gas is more expensive than petrol.

查看答案

（いま）（せんえん）しかもっていません。

查看答案

第一节听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 What do we know about the mother and son

A. [A] She wants to tell him the result of the game.
B. She doesn’t like him to watch TV.
C. She knows which team he supports.

查看答案

男，35岁，反复出现食欲不振，畏食、呕吐、腹泻等消化不良现象，时感上腹闷胀或疼痛，上腹压痛，胃酸分泌稍低于正常范围，血清胃泌素结果正常，诊断为“慢性胃窦胃炎”。给病人进行指导时，不包括下列哪项( )。

A. 教育病人养成良好的饮食习惯
B. 禁食山楂等酸性食物
C. 帮助病人戒烟
D. 介绍常用药物的使用方法
E. 嘱病人定期进行门诊复查

查看答案

Modem的作用是

A. 把计算机信号和音频信号互相转换 B. 把计算机信号转换为音频信号 C. 把音频信号转换为计算机信号 D. 防止外部病毒进入计算机中

（いま） （せんえん）しか もっていません。

男，35岁，反复出现食欲不振，畏食、呕吐、腹泻等消化不良现象，时感上腹闷胀或疼痛，上腹压痛，胃酸分泌稍低于正常范围，血清胃泌素结果正常，诊断为“慢性胃窦胃炎”。 给病人进行指导时，不包括下列哪项( )。

A. 把计算机信号和音频信号互相转换
B. 把计算机信号转换为音频信号
C. 把音频信号转换为计算机信号
D. 防止外部病毒进入计算机中

（いま）（せんえん）しかもっていません。

男，35岁，反复出现食欲不振，畏食、呕吐、腹泻等消化不良现象，时感上腹闷胀或疼痛，上腹压痛，胃酸分泌稍低于正常范围，血清胃泌素结果正常，诊断为“慢性胃窦胃炎”。给病人进行指导时，不包括下列哪项( )。