单项选择题

对于集成运放的输出级，要求其（），最大不失真输出电压尽可能大。

A.输出电阻大，输出电流大
B.输出电阻小，输出电流大
C.输出电阻小，输出电压大


点击查看答案进入小程序搜题

你可能喜欢

在一个连串反应A→Y→Z中，如果我们需要的是中间产物Y，那么为了得到产品的最高产率，应当： A.
控制适当的反应时间； B.
控制适当的反应温度； C.
增加反应物A的浓度； D.
增大反应速率。

点击查看答案进入小程序搜题
在《晋律》中“八议”被首次正式载入律典。（ ） A. 对 B. 错

点击查看答案进入小程序搜题
（16-20）Passage 2
Internet voting happens all the time, but usually it’s confined to topics such as “Who is the cutest cast member of Party of Five?” Soon, however, people will be able to cast their ballots for President on the Internet. In March, Arizona Democrats will vote online in their state’s presidential primary, and Florida and Washington are considering online voting. The military plans to allow a small test group of overseas soldiers to vote via the Internet this November.
The Internet voting is growing rapidly. There are civic (市民) engagement enthusiasts who see it as a way to prevent the drop in voter turnout. Then there are the Internet fans, who think the Internet is going to change everything, so why not politics? Most important are the people who make the plan for developing software for online voting. Imagine the retail price of that software, then multiply it by every state and city government, and suddenly a lot of Internet capitalists develop a deeply felt concern for increasing voter turnout.
Some problems will arise. Hackers and some Politicians could break into a voting database and make the secret ballot not so secret. A massive computer failure would have disastrous consequences. Just as serious, online voting could distort participation levels, at least, to the wealthy and cyber-connected.
In the long run, however, online voting might make little difference. Since the 1960s, the government has make numerous attempts to energize nonvoters by making it easier for them to get to the polls, extending voting hours, lowering the voting age, etc. Still, voter turnout has decreased steadily. Political scientists believe the important cause is indifference and dislike to politics, not the inconvenience of voting. Putting a ballot on the Internet might even further depress turnout by cheapening one of the holy ceremonies of democracy. “The business of democracy,” says Curtis Gans, an analyst of voting behaviors, “shouldn’t be the same as getting your e-mail.”
The word “ballot” (Line2, Para.1) most probably means _________.
A、A. vote                           
B、B. ball            
C、C. dance                 
D、D. vote

点击查看答案进入小程序搜题
目前使用最广泛的图像平面设计软件是美国Adobe公司出品的（ ）。

点击查看答案进入小程序搜题
对于老视的表述正确的是（）

A.生理现象
B.病理状态
C.属于屈光不正
D.调节能力减退
E.视近物不清

点击查看答案进入小程序搜题
赞题库

赞题库-搜题找答案

（已有500万+用户使用）


  • 历年真题

  • 章节练习

  • 每日一练

  • 高频考题

  • 错题收藏

  • 在线模考

  • 提分密卷

  • 模拟试题

无需下载 立即使用
手机版 电脑版

版权所有©考试资料网(ppkao.com)All Rights Reserved