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如图,平形四边形ABCD中,E、F分别是BC、DC的中点,G为DE与BF的交点,...
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如图所示,某地一天从6~14时的温度变化曲线近似满足函数:f(x)=Asin(ωx+φ)+b,x∈[6,14],则这段曲线的解析式为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304010_ST/0.png)
B.
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C.
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D.
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同时转动如图所示的两个转盘,记转盘甲得到的数为x,转盘乙得到的数为y,构成数对(x,y),则所有数对(x,y)中满足xy=4的概率为( )
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A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304009_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304009_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304009_ST/2.png)
D.
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已知
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304008_ST/0.png)
=(-5,6),
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304008_ST/1.png)
=(-3,2),
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304008_ST/2.png)
=(x,y),若
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304008_ST/3.png)
-3
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304008_ST/4.png)
+2
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304008_ST/5.png)
=
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,则
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等于( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304008_ST/8.png)
=(-2,6)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304008_ST/9.png)
=(-4,0)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304008_ST/10.png)
=(7,6)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304008_ST/11.png)
=(-2,0)
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若如图的程序框图输出的S是126,则①应为( )
A.n≤5
B.n≤6
C.n≤7
D.n≤8
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已知向量
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304006_ST/0.png)
,若
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,则tanθ的值等于( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304006_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225818975730435/SYS201311012258189757304006_ST/3.png)
C.-1
D.1
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