The two countries are going to meet to ________ some barriers to trade between them.
A.make up B.use up C.turn down D.break down
下列有关孟德尔豌豆的七对相对性状杂交实验的说法中,错误的是: ( )
A.正确地运用统计方法,孟德尔发现在不同性状的杂交实验中,F2的分离比具有相同的规律
B.解释实验现象时,提出的“假说”之一:F1产生配子时,成对的遗传因子分离
C.根据假说,进行“演绎”:若F1产生配子时.成对的遗传因子分离,则测交实验后代应出现两种表现型,且比例为l:1
D.假说能解释F2自交产生3:1分离比的原因,所以假说成
立
已知直线的参数方程是
,圆C的极坐标方程为
.
(1)求圆心C的直角坐标;
(2)由直线上的点向圆C引切线,求切线长的最小值.
物理小组在一次探究活动中测量滑块与木板之间的动摩擦因数.实验装置如图所示,一表面粗糙的木板固定在水平桌面上,一端装有定滑轮;木板上有一滑块,其一端与电磁打点计时器的纸带相连,另一端通过跨过定滑轮的细线与托盘连接.打点计时器使用的交流电源的频率为50 Hz.开始实验时,在托盘中放入适当的砝码,滑块开始做匀加速运动,在纸带上打出一系列小点.
(1)图14给出的是实验中获取的一条纸带的一部分:0、1、2、3、4、5、6、7是计数点,每相邻两计数点间还有4个打点(图中未标出),计数点间的距离如图所示.根据图中数据计算的加速度a=________(保留三位有效数字).
(2)回答下列两个问题:
①为测量动摩擦因数,下列物理量中还应测量的有______.(填入所选物理量前的字母)
A.木板的长度L B.木板的质量m1 C.滑块的质量m2
D.托盘和砝码的总质量m3 E.滑块运动的时间t
(3)滑块与木板间的动摩擦因数μ=________(用被测物理量的字母表示,重力加速度为g).
____, he doesn’t study well.
A. As he is clever B. He is as clever C. Clever as he is D. As clever he is
下图中①②③④表示气压带,⑤⑥⑦表示风带。读图回答4~5题。
4.有关图中气压带和风带的判断,正确的是
A.①—低气压带—冷暖空气相遇形成 B.⑤—低纬信风带—东南风
C.②—高气压带—空气冷却下沉形成 D.⑥—中纬西风带—西南风
5.当图中④地周围出现极夜时,下列地理现象最有可能出现的是
A.武汉梅雨 B.南京伏旱 C.北京寒潮 D.哈尔滨洪涝
《中华好诗词》以高雅的立意、精巧的设计、轻松的形式,将中华诗词艺术与电影媒体巧妙结合,满足了电视观众对传统文化多样性、多层次的需求。该节目的热播说明
①传统文化都应该发扬
②科技进步会影响文化的发展方向
③文化创新要面向广大人民
④中华文化源远流长、影响深远
A、①② B、②③ C、①④ D、③④
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下列实验操作正确的是( )
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盐酸
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| |||
I Ⅱ Ⅲ IV
A.实验Ⅰ:逐滴滴加盐酸时,试管中立即产生大量气泡
B.实验Ⅱ:配制0.10 mol·L-1 NaOH溶液
C.实验Ⅲ:装置③用于制备少量氧气
D.实验IV:可用于Fe(OH)2 的制取,并能防止Fe(OH)2 被氧化
已知数列{}是各项均为正值的等比数列,且
,
,则
( )
A.15 B. C.5 D.25
When your parents advise you to “get an education” in order to raise your income, they tell you only half the truth. What they really mean is to get just enough education to provide manpower(人力资源) for your society, but not so much that you prove an embarrassment to your society.
Get a high school diploma, at least. Without that, you will be occupationally dead unless your name happens to be George Bernard Shaw or Thomas Alva Edison, and you can successfully dropout in grade school.
Get a college degree, if possible. With a B. A., you are on the launching pad. But now you have to start to put on the brakes. If you go for a master’s degree, make sure it is an M.B.A., and the famous law of diminishing(逐渐减少的) returns begins to take effect.
Do you know, for instance, that long-haul truck drivers earn more per year than full professors? Yes, the average salary for those truckers was $24000 while the full professors managed to earn just $23030.
A doctorate is the highest degree you can get. Except for a few specialized fields such as physics or chemistry where the degree can quickly be turned to industrial or commercial purposes, if you pursue such a degree in any other field, you will face a future which is not bright. There are more doctors unemployed or underemployed in this country than any other part of the world.
If you become a doctor in English or history or anthropology or political science or languages or—worst of all—in philosophy, you run the risk of becoming overeducated for our national demands. Not for our needs, mind you, but for our demands.
Thousands of doctors are selling shoes, driving cars, waiting on table, and endlessly filling out applications month after month. They may also take a job in some high school or backwater(闭塞) college that pays much less than the doorkeeper earns.
You can equate the level of income with the level of education only so far. Far enough, that is, to make you useful to the gross national product, but not so far that nobody can turn much of a profit on you.
71. According to the writer, what the society expects of education is to turn out people who ______.
A. will not be a disgrace to society B. will become loyal citizens
C. can take care of themselves D. can meet the nation’s demand as a source of manpower
72. Many doctors are out of job because ______.
A. they are improperly educated B. they are of little commercial value to their society
C. there are fewer jobs in high schools D. they prefer easier jobs that make more money
73. The nation is only interested in people ______.
A. with diplomas B. who specialize in physics and chemistry
C. who are valuable to the gross national product D. who receive little education
74. Which of the following is NOT true?
A. Bernard Shaw didn’t finish high school, nor did Edison.
B. One must think carefully before pursuing a master’s degree.
C. The higher your education level, the more money you will earn.
D. If you are too well-educated, you’ll be overeducated for society’s demands.
75. The writer sees education as ______.
A. a means of providing job security and financial security and a means of meeting a country’s demands for technical workers
B. a way to broaden one’s horizons
C. more important than finding a job
D. an opportunity that everyone should have
孟子对梁惠王说:使百姓有“五亩之宅,树之以桑,五十者可以衣帛矣。鸡豚狗彘之畜,无失其时,七十者可以食肉矣。百亩之田,勿夺其时,数口之家可以无饥矣。”对孟子的上述言论理解正确的是①是对孔子仁学思想的继承和发展②有利于当时社会生产的发展③客观反映了人民对安居乐业的渴望④站在平民立场提出分给农民田宅的思想
A.①②③④ B.②③ C.①②③ D.①③
22.阅读下面的材料,根据要求写一篇不少于800字的文章。
据《武汉晚报》报道:武汉江夏区武昌大道二道口公交车站是个“一根铁棍挂起一块铁皮”简易车站,无棚无座,却是进出武昌、来往江夏各乡镇的公交车、中巴车的必经之地。一年多来,附近副食店老板熊国平师傅坚持每天摆出十几只小凳供等车乘客歇脚,夏天还撑两把大伞供人遮阳。为了能让等车的乘客有凳子坐,熊师傅每天5点到店,把凳子搬出来;晚上,公交车、中巴车全部收班了,熊师傅才把凳子一一搬进店里。熊师傅的举动感动了乘客,被网友称赞为“最美板凳大爷”。但也有媒体指出,“最美板凳大爷”凸显公交服务短板。
对于以上事情,你是怎么看的?
要求:综合材料内容及含意,选好角度,确定立意,完成写作任务。
与“不以己欲为欲,而以众心为心”这句话内涵相一致的是
A. 吾身虽瘦,天下必肥 B. 仁者见仁,智者见智
C. 勿以物喜,勿以己悲 D. 兵强则灭,木强则折
1.下列各句加横线熟语的使用,恰当的一句是( )
A.《蜗居》这部连续剧就像一首城市的悲歌,着实冷酷,让我们看见了人生鲜血淋漓的真面目。我们的人性中的灰色远比书本和道德标准上那些黑白来得多。无论是指责哪一种生活方式,其实都是没有真正经历者的隔岸观火,说得轻巧而已。
B.原教育部新闻发言人王旭明,昨天作客浙江人文大讲堂。这位被媒体称为最具个性的新闻发言人在杭的行程被排得很满,记者的采访只能见缝插针地安排在从宾馆前往这次大讲堂的举办地杭州师范大学的路上。
C.1992年11月17日这个冬天的早晨,路遥那双一生紧握着陕北的大手松开了,一个想要诉说的声音归于缄默,一个苍劲的手势在半空中戛然而止。
D.《秦腔》人物众多,世相缤纷。各色人物活动于同一空间,大小事件纵横捭阖,许多看似无关的许多小事,又彼此与主要事件相连,环环相扣,互相渗透。
如图表示细胞融合技术的一些过程,请据图回答:
(1)A、B融合为C的过程说明了细胞膜具有 特点.
(2)若A、B细胞为植物细胞,那么这样的细胞已经用 酶去除了细胞壁,A、B到C细胞的过程中,常用的化学诱导剂是 .形成的D细胞还要应用 技术把D培养成植株.
(3)若该过程是制备单克隆抗体的过程,在A、B到C的过程中,所形成的C有多种,用来培养的D细胞称为 ,它解决了B淋巴细胞在体外培养条件下 的缺点.
假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误。每处错误仅涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下画一横线,并在该词下面写出修改后的词
注意:1.每处错误及其修改均仅限一词;
2.只允许修改10处,多者(从第11处起)不计分。
In life people make many decisions, some of what are so important that they affect us greatly.
My latest decision is made when I entered Senior 3 in Miss Zhang's class. Since I was not good in English, Miss Zhang asked me to listen attentive in class and put down some important notes. Therefore, I was never a good listener. I went on in my own way , ignore her suggestions completely until Miss Zhang had talk with me. He made me realize the importance of note-taking.
From this experience, I have realized a good decision benefits from people. We should learn to take others’ advices and do the right things.
2014年,电影《老男孩之猛龙过江》的主题曲《小苹果》迅速流行。不少网友称,被这首歌“洗脑”后“唱得停不下来”,并戏称其为“神曲”。《小苹果》的流行说明( )
A.群众喜爱的文化就是我们所倡导的大众文化
B.文化发展要为人民大众所喜闻乐见
C.通俗文化日益成为人们文化生活的主流
D.人们的文化需求具有通俗性的特点