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ABCD
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ABCD在线阅读
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ABCD简介
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ABCD在线全集内容
如来自图,长方形纸片ABCD中,AB=8c国技立术增运弱********,按下列步骤进行裁剪和拼图:第一步:如图①,在线段AD讲控东意等标初剧上任意取一点...
画出第三步剪拼之后的四边形M急东洲管随快沙渐质妈*******的示意图,如答图1所示.图中,N1...
展开阅读全文 ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYBAMAAAASWSDLAAAAG1BMVEUAAABuk71wj79vkr1wj79wn79vlL1vk75vk73EmhGbAAAACHRSTlMA0BDfIBDfv/U9wHQAAABISURBVBjTY6AlYBOC0OEJQIK9UQHEZpUQAJJMEmCpQIiYIohiBQlBpKASUCmwBETKQiiw2QFmunOjhAncKhYLkARcCihBWwAA5n0JqdkCrS4AAAAASUVORK5CYII=)
如图,长方形纸片ABCD中,*************,按下列步骤进行裁剪和拼图:第一步:如图①,在线日渐翻局火段AD上任意取一点来自...
画出第三步剪拼之后的四边形M1N1N2M2的示意图,如答图1所示.图中,N1N2=EN1*EN2...
展开阅读全文 ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYBAMAAAASWSDLAAAAG1BMVEUAAABuk71wj79vkr1wj79wn79vlL1vk75vk73EmhGbAAAACHRSTlMA0BDfIBDfv/U9wHQAAABISURBVBjTY6AlYBOC0OEJQIK9UQHEZpUQAJJMEmCpQIiYIohiBQlBpKASUCmwBETKQiiw2QFmunOjhAncKhYLkARcCihBWwAA5n0JqdkCrS4AAAAASUVORK5CYII=)
如图,长方形纸片讨领危探非松ABCD中,AB=8cm,AD=6cm,按下列步骤进行裁剪和拼图:第一步:如图①,在线段AD上任意取
解:画出第三步剪拼之后的四边形********的示意图,如答图1所示.图中,N1N2=EN1+E...
展开阅读全文 ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYBAMAAAASWSDLAAAAG1BMVEUAAABuk71wj79vkr1wj79wn79vlL1vk75vk73EmhGbAAAACHRSTlMA0BDfIBDfv/U9wHQAAABISURBVBjTY6AlYBOC0OEJQIK9UQHEZpUQAJJMEmCpQIiYIohiBQlBpKASUCmwBETKQiiw2QFmunOjhAncKhYLkARcCihBWwAA5n0JqdkCrS4AAAAASUVORK5CYII=)
如图,长方形纸片ABCD中,AB=8cm,AD=6cm,按下列步骤进行裁剪和拼图: 第一步:如图①,在线段AD上任意
画出第三步剪拼之后的四边形********的示意图,如答图1所示.图中,N1N2=EN1+EN2...
展开阅读全文 ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYBAMAAAASWSDLAAAAG1BMVEUAAABuk71wj79vkr1wj79wn79vlL1vk75vk73EmhGbAAAACHRSTlMA0BDfIBDfv/U9wHQAAABISURBVBjTY6AlYBOC0OEJQIK9UQHEZpUQAJJMEmCpQIiYIohiBQlBpKASUCmwBETKQiiw2QFmunOjhAncKhYLkARcCihBWwAA5n0JqdkCrS4AAAAASUVORK5CYII=)
如图,长方形纸片ABCD中,AB=8cm,AD=6cm,来自按下列步骤进行裁剪和拼图: 第一步:如图①,在线段AD上任意
20,(MN最短就是AB一半,最长就是AB中点到C距离)画出第三步剪拼之后的四边形M1N1N2M...
展开阅读全文 ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYBAMAAAASWSDLAAAAG1BMVEUAAABuk71wj79vkr1wj79wn79vlL1vk75vk73EmhGbAAAACHRSTlMA0BDfIBDfv/U9wHQAAABISURBVBjTY6AlYBOC0OEJQIK9UQHEZpUQAJJMEmCpQIiYIohiBQlBpKASUCmwBETKQiiw2QFmunOjhAncKhYLkARcCihBWwAA5n0JqdkCrS4AAAAASUVORK5CYII=)
如图,长方形制片ABCD中,AB=8cm,A践足乱镇酒或随D=6cm,按下列步骤进行裁月剪和拼图 第一步:如图①,在线段AD上任意取
(1)画出第三步剪拼之后的四边形********的示意图,如答图1所示.响而蒸长满气总图中,N1...
展开阅读全文 ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYBAMAAAASWSDLAAAAG1BMVEUAAABuk71wj79vkr1wj79wn79vlL1vk75vk73EmhGbAAAACHRSTlMA0BDfIBDfv/U9wHQAAABISURBVBjTY6AlYBOC0OEJQIK9UQHEZpUQAJJMEmCpQIiYIohiBQlBpKASUCmwBETKQiiw2QFmunOjhAncKhYLkARcCihBWwAA5n0JqdkCrS4AAAAASUVORK5CYII=)
如图,长方形制片ABCD中,AB=8cm,AD=6cm,按下列步骤进行裁剪和拼图第一步:如图①,在线段AD上任意取一
解答:解:(1)画出来自第三步剪拼之后的四边形M1N1N2M2的示意图,如答图1所示.图中,N1...
展开阅读全文 ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYBAMAAAASWSDLAAAAG1BMVEUAAABuk71wj79vkr1wj79wn79vlL1vk75vk73EmhGbAAAACHRSTlMA0BDfIBDfv/U9wHQAAABISURBVBjTY6AlYBOC0OEJQIK9UQHEZpUQAJJMEmCpQIiYIohiBQlBpKASUCmwBETKQiiw2QFmunOjhAncKhYLkARcCihBWwAA5n0JqdkCrS4AAAAASUVORK5CYII=)
请问,英语和数学选择题ABCD哪个概率最高,在线求,急!!!
1-遇来自见不会要懵逼,蒙B。2-数学选最复杂的选项。
已知正方面司杨太上久套总章攻体ABCD-A1B1C1D1的体积为1,点M在线段BC上(点M异于B、C两点),点N为线段CC1的中点...
答案B
如图,已知正方体ABCD-A1B1C1D1的棱长为来自3,点E,F在线段AB上,点M在线段B1C1上,点N在线段C布棉演假常战联1D1上...
spanB解析:解:连接MB,逐推沙史语供缩员作规则MB即为M点到AB的距离,又∵EF=1,故S...
展开阅读全文 ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYBAMAAAASWSDLAAAAG1BMVEUAAABuk71wj79vkr1wj79wn79vlL1vk75vk73EmhGbAAAACHRSTlMA0BDfIBDfv/U9wHQAAABISURBVBjTY6AlYBOC0OEJQIK9UQHEZpUQAJJMEmCpQIiYIohiBQlBpKASUCmwBETKQiiw2QFmunOjhAncKhYLkARcCihBWwAA5n0JqdkCrS4AAAAASUVORK5CYII=)
如图,在单位正方体ABCD-A1B1C1D1中,点P在线段AD1上运动,给出以下四个来自命题:
spanD解析:解:对于①三棱锥D-BPC1的体积还等于三棱锥的体积P-DBC1的体积,而平面D...
展开阅读全文 ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYBAMAAAASWSDLAAAAG1BMVEUAAABuk71wj79vkr1wj79wn79vlL1vk75vk73EmhGbAAAACHRSTlMA0BDfIBDfv/U9wHQAAABISURBVBjTY6AlYBOC0OEJQIK9UQHEZpUQAJJMEmCpQIiYIohiBQlBpKASUCmwBETKQiiw2QFmunOjhAncKhYLkARcCihBWwAA5n0JqdkCrS4AAAAASUVORK5CYII=)
已知正方体ABCD-A1B1C1D1中,点P在线段A1B1上,点Q在线段B1C1上,且B1P=B1Q,给出下列结论:①A、C、P、Q
解:如图所示,①∵B1P=异绿松煤B1Q,∴PQ∥A1C1,∴A、C、P、Q四点共面,因此正确;...
展开阅读全文 ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYBAMAAAASWSDLAAAAG1BMVEUAAABuk71wj79vkr1wj79wn79vlL1vk75vk73EmhGbAAAACHRSTlMA0BDfIBDfv/U9wHQAAABISURBVBjTY6AlYBOC0OEJQIK9UQHEZpUQAJJMEmCpQIiYIohiBQlBpKASUCmwBETKQiiw2QFmunOjhAncKhYLkARcCihBWwAA5n0JqdkCrS4AAAAASUVORK5CYII=)
在正方体ABCD-A1B1C1D1中,点P在线段AD1上运动,则异面直线CP与BA1所成的角θ的取值范围是()
spanD解析:解:∵A1B∥D1C,∴CP与A1B成角可化为CP与D1C成角.∵△AD1C是正...
展开阅读全文 ![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYBAMAAAASWSDLAAAAG1BMVEUAAABuk71wj79vkr1wj79wn79vlL1vk75vk73EmhGbAAAACHRSTlMA0BDfIBDfv/U9wHQAAABISURBVBjTY6AlYBOC0OEJQIK9UQHEZpUQAJJMEmCpQIiYIohiBQlBpKASUCmwBETKQiiw2QFmunOjhAncKhYLkARcCihBWwAA5n0JqdkCrS4AAAAASUVORK5CYII=)
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