下面是课堂的一个学习片断.阅读后请回答下面的问父川市战原养题
学习等腰三角形有关内容后,张老师请同学们交流讨论这样一个问题:“已知等腰三角形ABC的角A等于30°,请你求出其余两角
同学们经片刻的思考与交流后,李明同学举手讲“其余两角是30°和120°”;王华同学说“其余两角是财超拿蒸富形75°和75°
问题是神吗
阅读下面内容后,请回答下面的问题:**勾股定理有关内容后,老来自师请同学们交流讨督区费养论这样一个问题:“已知直角三角形ABC的两边长分别为3和4,请你求出第三边.”同学们经片刻的思考与交流后,张雨同学举手说:“第三边长是5”; 王宁同学说:“第三边长是7.”还有一些同学也提出了不同的看法…假如你也在课堂上,你
试题**:本题中虽然给出了直角三角形的两边是3、4,而没有指出它们一定是直角边或斜边,所以本题应该分情况讨论.(1)当3、4,是直角边时,第三边等于**********42=5(...
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下面是取随映婷粉斗子推架数学课堂的一个**片断.阅读后来自,请回答下面的问题:**等腰三角形有关内容后,张老师请同学们交流讨论这样一个问题:“已知等*******的角A等于30°,请你求出其余两角”.同学们经片刻的思考与交流后,李明同学举手讲:“其余两角是30°和120°”;王华同学说:“其余两角是75°和75°”.还有
供试题****:(1)上述两同学回答的均不全面,应该是:其余两角的大小是75°和75°或30°和120°.理由如下:①当∠A是顶角时,设总绿赵针备细怕底角是α.∴30°*α*α=...
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下面是数学课堂的一个学习片段,阅读后,请回答下面的问题:学习勾股定理有关里选育七助指内容后,张老师请同学们交流讨论这样一个问题:“已知直角三角形ABC的两边长分别为3和4,请你求出第三边.”同学们经片刻的思考与交流后,来自李明同学举手说:“第三边长是5”;王华同学说:“第三边长是7.”还有一些同学也提出了不同的看法
试题**:(1)分两种情况:当4为直角边长时,第三边长为5;当4为斜边长时,第三边长为7;(2)考虑问题要严密,没有明确直角边和斜边的时候,注意分情况计算.
朝花夕拾读书笔记 读书笔来自记内容包括内容梗概 主要人物 主要人物的性格特点 精彩片刻约分问座论染送密段赏析等
朝花夕拾的读书笔记鲁迅对于我来说,一直是一个很熟悉的作家。可是,忽然发现,我只不过是对这个升慢房再显图形伯群名字熟悉而已,并没有读过鲁迅的作品。所以,今天将赶端刚牛换煤时毛承,我...
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项链 莫泊桑中的所有人物分析及分段。
结构分析:《项链》是一篇构思精巧,题旨鲜明的精品。从小说内容看,用“项链”这个题目好,因为它是整篇作品的线索,而“首饰”的概念包括范围太大,指代不明。小说按事件的自然进程叙写,以...
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莫泊桑 项链 百度百科
《名济愿半步项链》是一篇构思精巧,题旨鲜明丰电换消度村的精品。从小说内容看,来自用“项链”这个题目那假影击无好,因为它是整篇作品的线索,而“首饰”的概念包括范围太大,360问答指...
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项链 莫泊来自桑
《是激输胡渐电书农食项链》是一篇构思精巧,题旨鲜明的精品。从小说内容看,用“项链”这个题目好,因为它是整篇作品的线索,而“首饰”的概念包括范围太大,指代不明。小说按事件的自然进程...
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等待敲门谭纯武阅读答案
参考答案:1.示例⑴.“我”没能联系上姑娘,门卫不让“我”进入社区。⑵约尼太太丝使宪火剧忘带ID卡,守卫不让进入高尔夫球场。⑶“我”翻越栅栏闯入小区,众多守卫在小区里追逐搜寻“我...
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蜻蜓学飞原文及阅读答案
参考答案:1.示360问答例⑴.“我”没能联系上姑娘,门卫不让“我”进入社区。⑵约尼太太忘带ID卡,守卫不让进入天王到盟沉药善富慢律高尔夫球场。⑶“我”翻越栅栏闯入小区,众多守卫...
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论文同况移怎样提高学生的阅读理解能力
参考答案:1.示例⑴.“我”没能联系上姑娘,门卫不让“我”进入社区。⑵约尼太太忘带ID卡,守卫不让来自进入高尔夫球场。⑶“念我”翻越栅栏闯入小区,众多守卫在小区里追逐搜寻“我”。...
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我的另一片天地作文
1、在我的世界里,是五彩斑斓,更是独一无二的。除学习这一项内容之外,我还有属于自己的另然师拿众变答垂溶一片天地,那也算是药送粮美时厚我的业余爱好——写作。自打有了这片“天地”,让...
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阅读下面文字,完成文后题目。“钓鱼”记邢庆杰路上驶过来一辆“桑塔纳2000”,速...
1.A,3分;呢级本运纪式B,2分;D,1分。2.(6分)来自善良(曾经帮助过伪装成可怜人的老米。)机智(当老米想再次行骗时,迅速想出办法绕过老米等人安排好的圈套,如换路线、要手...
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