满分5 >
初中数学试题 >
如图①放置的一个水管三叉接头,若其正视图如图②,则其俯视图是( ) A. B. ...
如图①放置的一个水管三叉接头,若其正视图如图②,则其俯视图是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055561553/SYS201310221605570555615004_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055561553/SYS201310221605570555615004_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055561553/SYS201310221605570555615004_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055561553/SYS201310221605570555615004_ST/images3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055561553/SYS201310221605570555615004_ST/images4.png)
考点分析:
相关试题推荐
如图,点A、B、C在⊙O上,AB∥CO,∠B=22°,则∠A的度数是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055561553/SYS201310221605570555615003_ST/images0.png)
A.11°
B.22°
C.40°
D.44°
查看答案
下列图形中,既可以看作是轴对称图形,又可以看作是中心对称图形的为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055561553/SYS201310221605570555615002_ST/images0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055561553/SYS201310221605570555615002_ST/images1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055561553/SYS201310221605570555615002_ST/images2.png)
D.
查看答案
下列计算正确的是( )
A.a
2+b
2=2a
4B.3
+3
-1=-3
C.(2a)
2=4a
2D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055561553/SYS201310221605570555615001_ST/0.png)
=±2
查看答案
-3的倒数是( )
A.3
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055561553/SYS201310221605570555615000_ST/0.png)
C.-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055561553/SYS201310221605570555615000_ST/1.png)
D.-3
查看答案
已知如图,矩形OABC的长OA=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160557055408019/SYS201310221605570554080027_ST/0.png)
,宽OC=1,将△AOC沿AC翻折得△APC.
(1)填空:∠PCB=______度,P点坐标为______
查看答案