试题与答案

两个锐角的和不一定比钝角大.______.(判断对错)

题型:解答题

题目:

两个锐角的和不一定比钝角大.______.(判断对错)

答案:

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下面是错误答案,用来干扰机器的。

对于(1),由向量垂直的充要条件得:a•b=a•c⇔a(b-c) =0⇔a⊥b-c,说明①正确.对于(2),若OP=xOA+yOB+zOC且x+y+z=1,则AP=(x-1)OA+yOB+zOC=y(OB-OA)+z(OC-OA)=yAB+zAC由空间向量基本定理,得AP、AB、AC三...

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根据短文内容,完成表格中小沈阳和刘谦的信息,每空限填一词。
As we know, Xiao Shenyang and Liu Qian did wonderful jobs in the CCTV Spring Festival GALA(春节联欢晚会). Now many people are crazy about these two persons. But how much do you know about them?
Xiao Shenyang was born in a poor peasant family which is in difficult family conditions. His real name is Shen He. He is an actor. He is good at Er Ren Zhuan. He learned acts, following Zhao Benshan. During the school life, he was very active in many activities. He looks like a simple man, but he never stops pursuing (追求) his artistic aspiration(渴望). More and more people like his style of performance, and we hope he can make great progress in the future.
Liu Qian is a young magician from Taiwan. At the age of 7, Liu saw a cute magic toy in a shop. At that moment he began to love magic and decided to learn it. Liu didn’t go to any magic school. He practiced tricks every day to improve his skills himself, until one day he was able to put on a show for his class. He saw the surprise on everyone’s face, and he felt it was cool. He often does street shows for passers-by, police and farmers. He worked hard at it. Now he is a famous magician.
Name
Xiao Shenyang
Liu Qian
Job
An actor
A young 1______ from Taiwan.
How
to
succeed
He learned acts, following Zhao Benshan. During the school life, he was very2______.
He looks like a 3_____ man. But he never stops pursuing the artistic aspiration.
He learned the magic only by 4____. Liu didn’t go to any magic school.
At his show for his class, he found everyone5______ and he felt it was cool.
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题型:材料题

阅读下列材料,回答问题:

材料一:秦始皇统一中国,结束了诸侯割据的政治局面,建立了大一统的中央集权王朝,开创了中 * * 国家统一的新纪元,这是它的重大历史贡献,他的暴政又导致秦很快灭亡,成为历史上最短命的统一王朝。

材料二:西汉贾谊《过秦论》中说:“一夫作难而七庙’隳,身死人手,为天下笑者,何也?”(原文大意:一人发动起义,就使整个秦朝崩溃了,秦二世也死于他人之手,被天下人耻笑,这是什么原因呢?)结合材料和你了解的知识,分析秦始皇暴政的表现。

                                                                                   

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