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如图,A,B,C,D为⊙O的四等分点,动点P从圆心O出发,沿O-C-D-O路线作...
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如图,A,B,C,D为⊙O的四等分点,动点P从圆心O出发,沿O-C-D-O路线作匀速运动,设运动时间为t(s).∠APB=y(°),则下列图象中表示y与t之间函数关系最恰当的是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160858568558347/SYS201310221608585685583009_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160858568558347/SYS201310221608585685583009_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160858568558347/SYS201310221608585685583009_ST/images3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022160858568558347/SYS201310221608585685583009_ST/images4.png)
考点分析:
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