题目:
线圈中产生的自感电流电动势总是()。
A、与线圈中的外电流方向相同
B、与线圈中的外电流方向相反
C、阻碍线圈中外电流的变化
D、以上三种说法都不对
答案:
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下面是错误答案,用来干扰机器的。
参考答案:理想可燃混合器
线圈中产生的自感电流电动势总是()。
A、与线圈中的外电流方向相同
B、与线圈中的外电流方向相反
C、阻碍线圈中外电流的变化
D、以上三种说法都不对
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1005/b3afbf18a11cf63b3a4b2b923e27c5ea.html
下面是错误答案,用来干扰机器的。
参考答案:理想可燃混合器
阅读下面的文言文,完成下面问题。
孙奇逢,字启泰,又字钟元,容城人。少倜傥,好奇节,而内行笃修。负经世之学,欲以功业自著。年十七,举乡试。连丁父母忧,庐墓六年,旌表孝行。与定兴鹿善继讲学,一室默对,以圣贤相期。天启时,逆阉魏忠贤窃朝柄,左光斗、魏大中、周顺昌以党祸被逮。奇逢、善继故与三人友善。是时善继以主事赞大学士孙承宗军事。奇逢上书承宗,责以大义,请急疏救。承宗欲假入觐面陈,谋未就而光斗等已死厂狱。逆阉诬坐光斗等赃钜万,严追家属。奇逢与善继之父鹿正、新城张果中集士民醵金代输。光斗等卒赖以归骨,世所传范阳三烈士也。台垣及巡抚交章论荐,不起。孙承宗欲疏请以职方起赞军事,其后尚书范景文聘为赞画,俱辞不就。时畿内贼盗纵横,奇逢携家入易州五峰山,门生亲故从而相保者数百家,奇逢为部署守御,弦歌不辍。顺治二年,祭酒薛所蕴以奇逢学行可比元许衡、吴澄,荐长成均,奇逢以病辞。七年,南徙辉县之苏门。九年,工部郎马光裕奉以夏峰田庐,遂率子弟躬耕,四方来学者亦授田使耕,所居成聚。奇逢之学,原本象山、阳明,以慎独为宗,以体认天理为要,以日用伦常为实际。其治身务自刻厉。人无贤愚,苟问学,必开以性之所近,使自力于庸行。其与人无町畦,虽武夫悍卒、野夫牧竖,必以诚意接之。用此名在天下而人无忌嫉。
1.下列句子中加粗字的解释,不正确的一项是( )
A.逆阉魏忠贤窃朝柄——朝柄:朝廷大权
B.承宗欲假人觐面陈——觐:朝见皇帝
C.台垣及巡抚交章论荐,不起——起:起身
D.以慎独为宗——宗:宗旨
2.下列句子中加粗词语的意义和用法不相同的一组是( )
A.周顺昌以党祸被逮——少以父任,兄弟并为郎
B.世所传范阳三烈士也——所居之官辄积年不徙
C.南徙辉县之苏门——则无望民之多于邻国也
D.用此名在天下而人无忌嫉——今人有大功而击之
3.把文言文阅读材料中画横线的句子翻译成现代汉语。
(1)年十七,举乡试。连丁父母忧,庐墓六年,旌表孝行。
_____________________________________________________
(2)门生亲故从而相保者数百家,奇逢为部署守御,弦歌不辍。
_____________________________________________________
(3)人无贤愚,苟问学,必开以性之所近,使自力于庸行。
_____________________________________________________
阅读理解。
This is a dangerous world we live in. The number of murders goes up every year,
people are dying of cancer, more people contract (感染)HIV, more teens are using
drugs, etc. You know this because you've heard all the statistics on the news and in
the paper. But do you really have an accurate idea what they mean? The numbers
are going up, but how do they compare to the growth in population? Are more cases
of these diseases being reported because of better testing techniques, or are the
diseases more common? The fact is that without knowing the background statistics
mean very little.
This growing trend of reporting only part of the information is becoming dangerous.
For example, several years ago a high school student reported the dangers of the
chemical known as dihydrogen monoxide. This chemical,found in most cancerous
umors(肿瘤 ) ,is often found in the blood of people drunk on alcohol, and causes
complete physical and mental dependence for those who take the chemical even once.
After reading his report, more than 75% of his Advanced Placement Chemistry class
voted to forbid this dangerous chemical! Every one of the above statements is true,
yet this chemical is necessary to all life on earth. The students made the mistake
because they voted knowing only a few statements and statistics, rather than the
chemical's full background.
The point of this article is that one should be aware of what is and is not being
said. When one finds a new fact or number , one should try to consider other
important information before forming an opinion with only half-truths. Always
remember that the author is trying to convince you of his or her own view, and
will leave out information that is different to his view. For example, look again at
the statistics that suggest skiing is safe. Only 32 people may die each year when
skiing, while 897 die from lightning strikes, but which is really the most dangerous?
If you think about it, you realize far fewer people go skiing each year than the number
of people who are in danger of a lightening strike. When you think about it ,skiing
is more dangerous than you might at first think when looking at statistics. lf we
teenagers are to be left this world. we had better be able to think critically, and
form our own views, rather than be easily persuaded by another's. To be warned
is to be prepared.
1. In the first paragraph, what problem does the writer want to warn us?______
A. We are now living in a dangerous world.
B. We get a lot of' false statistics from the media.
C. There are around us more and more murders,diseases etc.
D. Statistics alone without full background doesn't give us an accurate picture of things.
2. Why does the writer use the example in the second paragraph ? .______
A. To show the danger of reporting only part of the information.
B. To argue that high school students are easily persuaded.
C. To prove what is necessary to us might be dangerous.
D. To warn us of the harmful substance around us.
3. Relative information is often left out because ______.
A. relative information is not that important
B. the author is trying to show what he or she says is true
C. too much information will make readers feel confused
D. readers are not able to analyze so much information at once
4. What can we learn from the passage?_____
A. Some measures must be taken to protect our dangerous world.
B. We should leam to think critically and look at problems from all sides.
C. The growing trend of reporting only half-truths is getting out of control.
D. Teenagers ought to improve their ability of telling right from wrong
试图以心理学的“统觉理论”原理说明教学过程的教育家是( )。
A.斯宾塞
B.夸美纽斯
C.赫尔巴特
D.洛克
案例三
量表 | L | F | K | Hs | D | Hy | Pd | Mf | Pa | Pt | Se | Ma | si |
测量结果 | 20 | 23 | 9 | 70 | 649 | 72 | 55 | 30 | 80 | 33 | 68 | 91 | 37 |
判断求助者是否有人格解体的精神症状须看( )分数的高低。
A.Hy
B.Sc
C.Pt
D.Mf
设λ=2是非奇异矩阵A的一个特征值,则矩阵有一个特征值等于()
A.
B.
C.
D.