单项选择题


What is the area of the hexagonal region shown in the figure above（）


 

A.A
B.B
C.C
D.D
E.E

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What is the maximum number of nonover-lapping regions into which 3 lines can divide the interior of a circle（）

A. 4
B. 6
C. 7
D. 8
E. 9
单项选择题
The dimensions，in centimeters，of rectangular box R are 6 by 8 by 10．Which of the following CANNOT be the total surface area，in square centimeters，of two faces of R（）

A. 96
B. 120
C. 128
D. 160
E. 180
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