满分5 >
初中数学试题 >
如图,DE是△ABC的中位线,若BC的长为3cm,则DE的长是( ) A.2cm...
如图,DE是△ABC的中位线,若BC的长为3cm,则DE的长是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190858292658425/SYS201311011908582926584006_ST/images0.png)
A.2cm
B.1.5cm
C.1.2cm
D.1cm
考点分析:
相关试题推荐
在一个不透明的口袋中,装有5个红球3个白球,它们除颜色外都相同,从中任意摸出一个球,摸到红球的概率为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190858292658425/SYS201311011908582926584005_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190858292658425/SYS201311011908582926584005_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190858292658425/SYS201311011908582926584005_ST/2.png)
D.
查看答案
长方体的主视图与左视图如图所示(单位:cm),则这个长方体的体积是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190858292658425/SYS201311011908582926584004_ST/images0.png)
A.24cm
3B.12cm
3C.8cm
3D.4cm
3
查看答案
当x为满足什么条件时,分式
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190858292658425/SYS201311011908582926584003_ST/0.png)
无意义( )
A.x=1
B.x=-1
C.x=2
D.x=-2
查看答案
将叶片图案旋转180°后,得到的图形是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190858292658425/SYS201311011908582926584001_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190858292658425/SYS201311011908582926584001_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190858292658425/SYS201311011908582926584001_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190858292658425/SYS201311011908582926584001_ST/images3.png)
D.
查看答案