满分5 >
高中数学试题 >
一个几何体的三视图如图所示,且其侧视图是一个等边三角形,则这个几何体的体积为( ...
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713006_ST/images0.png)
一个几何体的三视图如图所示,且其侧视图是一个等边三角形,则这个几何体的体积为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713006_ST/0.png)
B.(4+π)
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713006_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713006_ST/2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713006_ST/3.png)
考点分析:
相关试题推荐
设曲线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713005_ST/0.png)
在点(3,2)处的切线与直线ax+y+1=0垂直,则a=( )
A.2
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713005_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713005_ST/2.png)
D.-2
查看答案
已知数列{a
n},{b
n}满足a
1=b
1=1,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713004_ST/0.png)
,则数列
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713004_ST/1.png)
的前10项的和为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713004_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713004_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713004_ST/4.png)
D.
查看答案
函数f(x)=lg
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713003_ST/0.png)
的大致图象是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713003_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713003_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713003_ST/images3.png)
D.
查看答案
下列说法中,正确的是( )
A.命题“若a<b,则am
2<bm
2”的否命题是假命题.
B.设α,β为两个不同的平面,直线l⊂α,则“l⊥β”是“α⊥β”成立的充分不必要条件.
C.命题“∃x∈R,x
2-x>0”的否定是“∀x∈R,x
2-x<0”.
D.已知x∈R,则“x>1”是“x>2”的充分不必要条件.
查看答案
若集合A={y|y≥0},A∩B=B,则集合B不可能是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713001_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101248535071356/SYS201311031012485350713001_ST/1.png)
C.{y|y=lgx,x>0}
D.∅
查看答案