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【单选题】
已知曲线f（x）=x n+1 （n∈N*）与直线x=1交于点P，若设曲线y=f（x）在点P处的切线与x轴交点的横坐标为x n ，则log 2011 x 1 +log 2011 x 2 +…+logx 2010 的值为 [ ]A.
-log 2011 2010-2
B.
-1
C.
log 2011 2010-1
D.
1
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【简答题】在 Windows 7中,要把选定的文件剪切到剪贴板中,可以按 组合键
【简答题】A．Both of them like traveling by train. B．Both of them like the scenery in San Francisco. C．Both of them like music. D．Both of them like chatting.
【单选题】Maggie and Stella _____new here. They ____listening to music.
A.
are both; both like
B.
both are; like both
C.
are all; all like
D.
all are; like all
【简答题】在 Windows 7中,要把选定的文件剪切到剪贴板中,可以按 组合键
【单选题】What do Laura and Kate have in common?
A.
They both like music.
B.
They both like traveling.
C.
They both like camping.
D.
They both like dancing.
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