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已知正六边形ABCDEF的边长为1,则的值为( ) A. B. C. D.
已知正六边形ABCDEF的边长为1,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793010_ST/0.png)
的值为( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793010_ST/images1.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793010_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793010_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793010_ST/3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793010_ST/4.png)
考点分析:
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如图是一个几何体的三视图,根据图中数据,可得该几何体的表面积是( )
A.9π
B.10π
C.11π
D.12π
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793008_ST/images0.png)
如图所示的是函数y=Asin(ωx+φ)图象的一部分,则其函数解析式是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793008_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793008_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793008_ST/2.png)
D.
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已知向量
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793007_ST/0.png)
=(2,1),
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793007_ST/1.png)
=10,|
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793007_ST/2.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793007_ST/3.png)
|=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793007_ST/4.png)
,则|
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793007_ST/5.png)
|=( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793007_ST/6.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793007_ST/7.png)
C.5
D.25
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若圆x
2+y
2-6x+6y+14=0关于直线l:ax+4y-6=0对称,则直线l的斜率是( )
A.6
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793006_ST/0.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793006_ST/1.png)
D.
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曲线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793005_ST/0.png)
在点
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793005_ST/1.png)
处切线的倾斜角为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793005_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793005_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105979391/SYS201311031010171059793005_ST/4.png)
D.
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