单项选择题
A. 678 B. 766 C. 948 D. 1,130 E. 1,312
If the radius of a circular region were decreased by 20...
单项选择题If the radius of a circular region were decreased by 20 percent, the area of the circular region would decrease by what percent（）
A. 16% B. 20% C. 36% D. 40% E. 44%
The median salary for professional group A is $40,610. ...
单项选择题The median salary for professional group A is $40,610. The median salary for professsional group Bis $40,810. The median salary for groups A and $ 40,710 B combined（）
A. if Quantity A is greater; B. if Quantity B is greater; C. if the two quantities are equal; D. if you cannot determine the relationship based on the given information.
（） A. if Quantity A is greater; B. if Quantity B is gre...
单项选择题（）
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