满分5 >
初中数学试题 >
将一个正方体沿某些棱展开后,能够得到的平面图形是( ) A. B. C. D.
将一个正方体沿某些棱展开后,能够得到的平面图形是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191024760592354/SYS201311011910247605923007_ST/images0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191024760592354/SYS201311011910247605923007_ST/images1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191024760592354/SYS201311011910247605923007_ST/images2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191024760592354/SYS201311011910247605923007_ST/images3.png)
考点分析:
相关试题推荐
如图,梯形ABCD中,DC∥AB,EF是梯形的中位线,对角线BD交EF于G,若AB=10,EF=8,则GF的长等于( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191024760592354/SYS201311011910247605923006_ST/images0.png)
A.2
B.3
C.4
D.5
查看答案
水平放置的下列几何体,主视图不是长方形的是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191024760592354/SYS201311011910247605923005_ST/images0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191024760592354/SYS201311011910247605923005_ST/images1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191024760592354/SYS201311011910247605923005_ST/images2.png)
D.
查看答案
在一个晴朗的上午,小丽拿着一块矩形木板在阳光下做投影实验,矩形木板在地面上形成的投影不可能是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191024760592354/SYS201311011910247605923004_ST/images0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191024760592354/SYS201311011910247605923004_ST/images1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191024760592354/SYS201311011910247605923004_ST/images2.png)
D.
查看答案
下列命题中,错误的是( )
A.三角形两边之和大于第三边
B.三角形的外角和等于360°
C.三角形的一条中线能将三角形面积分成相等的两部分
D.等边三角形既是轴对称图形,又是中心对称图形
查看答案