题干

下列语句:

①一条直线有且只有一条垂线;

②不相等的两个角一定不是对顶角;

③不在同一直线上的四个点可画6条直线;

④如果两个角是邻补角,那么这两个角的平分线组成的图形是直角.

其中错误的有(  )

A:1个

B:2个

C:3个

D:4个

上一题 下一题 0.0难度 选择题 更新时间:2010-10-14 09:35:43

答案(点此获取答案解析)

B

同类题3

【历史上重大改革回眸】阅读下列材料:

材料一无徵不信,不信民不从,故一切制度托之三代先王以行之。若谓圣人行事不可依托,则是以硁硁之小人,律神话之孔子矣。布衣改制,事大骇人,故不如与之先王,既不惊人,自可避祸。

——康有为《孔子改制考》

材料二著自下科为始,乡会试及生童岁科各试,向用四书文者,一律改试策论。……现当开创百度,事务繁多,度支岁入有常,岂能徒供无用之冗费,致碍当务之急需。如詹事府本属闲曹,无事可办……均著即行裁撤,归并内阁及礼兵刑部办理。旗丁生齿日繁,徒以格于定制,不得在外省经商贸易,遂至生计益艰,……现当百度维新,自宜驰宽其禁,俾得各

习四民之业,以资治生。

——中国近代史资料丛刊

材料三比年以来,皇上有意变法,而盈朝汹汹,不可向迩,亲贵抗违,耆老力诤,群僚面从而后言,举政始行而中废。乃至奉旨发议,乃推延而不议;明诏施行,乃束阁而不行。人心众论,缉缉仳仳。”

——杨深秀《请告天祖誓群臣以变法定国是折》

材料四适应现代世界不断发展趋势而不断革新,是现代化的本质,但成功的现代化运

动,不但善于克服传统因素对革新的阻力,而尤其在善于利用传统因素作为革新的动力。

——罗荣渠《现代化新论》

请回答:

同类题4

完形填空

    John graduated from a key university and he was very good at his major. He wished to find a good job. One day, he went to a company to 1 for a job. He got the news in a newspaper. He did some research on this company. When he was 2 everything went well. The manager asked him some questions and he answered them 3 John was very satisfied with his performance and was very 4that he could get the job. But at that moment, the manager's phone5 He picked up the phone, listened and nodded. And then he turned around and said to John, “Sorry, I want to get some important 6 now. Please give me the book with the red7on that desk.” John looked around and found 3 books on the desk, so John went to the desk, took one book and handed it to him 8Holding the book, the manager 9 the phone and said, “Sorry, we cannot give the job to you.” John was10and wondered why. The manager said, “There are three11 First, when you came into the office room, I found that the third button on your shirt had been missing. Second, there are three books with red covers on that desk, but you didn't ask me which one I needed and you took one 12 Third, I was answering the call. You should 13to the desk to save time. These 14showed you are not a careful person.” Therefore, John didn't get the job.

    We can learn a(n) 15 from John's experience. Some people don't 16 the details in our life. But it is the details that17Not only should we value what we learn but also we should pay more attention to the details. Sometimes they can even18our success or failure. We should form the habit of being careful and learn to keep the19between quantity and quality. We should keep in mind that 20comes first, without which quantity is of no significance.