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Each of Questions 1 to 7 presents two quantities. Quantity A and Quantity B. Compare the two quantities. You may use additional
Each of Questions 1 to 7 presents two quantities. Quantity A and Quantity B. Compare the two quantities. You may use additional
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2013-05-19
43
问题
Each of Questions 1 to 7 presents two quantities. Quantity A and Quantity B. Compare the two quantities. You may use additional information centered above the quantities if such information is given. Choose one of the following answer choices:
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.
选项
A、
B、
C、
D、
答案
D
解析
The correct answer is D. Given that x+y=4, there are infinitely many pairs of(x, y)values that make the equation true. For example:
2 + 2=4
5 +(-l)= 4
(-3)+ 7=4
From the three examples above, it is clear that there are instances when x=y, x>y, and x
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