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在画三视图时,主、俯视图要 ,主、左视图要 ,左、俯视图要 .
在画三视图时,主、俯视图要 ,主、左视图要 ,左、俯视图要 .
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从上面看圆柱和从上面看圆锥,其形状是一样的,都是圆,但是它们的俯视图是有区别的,其区别是
.
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画三视图是有一定要求的,首先确定
的位置,画出主视图,然后在主视图的下面画出
,在主视图的右面画出
.
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下图中,几何体的三种视图正确的是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000016853267857/SYS201311030000168532678006_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000016853267857/SYS201311030000168532678006_ST/images1.png)
B.
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C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000016853267857/SYS201311030000168532678006_ST/images3.png)
D.
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下图中,几何体的三种视图正确的是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000016853267857/SYS201311030000168532678005_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000016853267857/SYS201311030000168532678005_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000016853267857/SYS201311030000168532678005_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000016853267857/SYS201311030000168532678005_ST/images3.png)
D.
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从正面观察下图的两个物体,看到的是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000016853267857/SYS201311030000168532678004_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000016853267857/SYS201311030000168532678004_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000016853267857/SYS201311030000168532678004_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000016853267857/SYS201311030000168532678004_ST/images3.png)
D.
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