数学奥林匹克初中训练题 一选择题1.若正整数abcxyz满足ax=bcby=accz=ab则乘积xyz可能的取值个数为( ).(A)2 (B)3 (C)4 (D)无数多2.如图在△ABC中∠B为直角∠A的平分线为AD边BC上的中线为E且点DE顺次分BC成三段的比为1∶2∶3.则sin∠BAC=( ). (A)1213 (
有理数奥赛题已知a>b>c>0且abc为正整数ab=2003b-c=1000.试确定abc各为多少20032003×2003-2003÷2003的值是( ) .若2004-=x则x=( ) .计算:2006×20082008-2008×20062006 5.计算:6.计算:7(-1001)2009×()2008×(-)2009×(-)2009×(-)
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信息学奥赛初赛训练试题(一)微型计算机的问世是由于( ) 的出现a) 中小规模集成电路 b) 晶体管电路 c) (超)大规模集成电路 d) 电子管电路下列说法中正确的是( ) a) 计算机体积越大其功能就越强b) cpu的主频越高其运行速度越快c) 两个显示器屏幕大小相同则它们的分辨率必定相同d)点阵打印机的针数越多则能打印的汉字字体越多windows98中通过查找命令查找文件时若输入f.
初中奥林匹克数学竞赛题2011年09月14日07:4字号:TT 1.三个有理数ABC其积为负数其和为正数当: X=(A的绝对值)A(B的绝对值)B(C的绝对值)C时则代数式 (X29-95X1028) 的值是多少2.元旦晚会主持人出了一道题目:如何把23=8变成一个真正的等式没人能答出这时小李拿出一个镜子就把问题解决了大家都说小李聪明你知道小李用的什么办法吗(数字为电子表上的
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Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewordsCreated with an evaluation copy of Aspose.Words. To discover t
Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewordsCreated with an evaluation copy of Aspose.Words. To discover t
Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewordsCreated with an evaluation copy of Aspose.Words. To discover t
Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewordsCreated with an evaluation copy of Aspose.Words. To discover t
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