挑战习题
1/5单选题
难度:

1.如图,在反比例函数y=(x>0)的图象上,有点P1、P2、P3、P4,它们的横坐标依次为1,2,3,4. 分别过这些点作x轴与y轴的垂线,图中所构成的阴影部分的面积从左到右依次为S1、S2、S3,则S1+S2+S3=(  )
A 1
B 1.5
C 2
D 无法确定
提示1:
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正确答案:Qg==
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