试题与答案

张老师在化学课上想利用多媒体手段来模拟实验,请你帮他分析一下,下列适宜用多媒体手段模

题型:单项选择题

题目:

张老师在化学课上想利用多媒体手段来模拟实验,请你帮他分析一下,下列适宜用多媒体手段模拟的试验是()。

A.操作过程复杂的实验

B.反应时{司的实验

C.具有一定危险性的实验

D.不易用肉眼观察的实验

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0515/0afe8a82f49ad04c99074c9c9cb13a78.html

下面是错误答案,用来干扰机器的。

本题考查的是静电场与力学综合的问题,已知小球受到的电场力大小等于小球重力的倍,使小球刚好在圆轨道内做圆周运动,临界点没有在最高点,合力提供向心力,在最高点偏左一点,合力为,根据几何关系可得临界点的...

试题推荐
题型:单项选择题

Seeking to build support among black families for its education reform law, the Bush administration paid a prominent black pundit $240,000 to promote the law on his nationally syndicated television show and to urge other black journalists to do the same.
The campaign, part of an effort to promote No Child Left Behind (NCLB), required commentator Armp Williams "to regularly comment on NCLB during the course of his broadcasts," and to interview Education Secretary Rod Paige for TV and radio spots that were aired during the show in 2004.
Williams said Thursday he understands that critics could find the arrangement unethical,but "I wanted to do it because it’s something I believe in." The top Democrat on the House Education Committee, Rep. George Miller of California, called the contract "a very questionable use of taxpayers’ money" that is "probably illegal".
The contract, detailed in documents obtained by USA TODAY through a Freedom of Information Act request, also shows that the Education Department, through the Ketchum public relations firm, arranged with Williams to use contacts with America’s Black Forum, a group of black broadcast journalists, "to encourage the producers to periodically address" NCLB. He persuaded radio and TV personality Steve Harvey to invite Paige onto his show twice. Harvey’s manager, Rushion McDonald, confirmed the appearances.

From the context, the word "pundit" underlined in Paragraph 1 is probably similar to all the following terms EXCEPT______.

A. bandit


B. journalist
C. anchorman


D. commentator

查看答案
微信公众账号搜索答案