2. 外语
  3. 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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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. Quantity A simplifies to n17, while Quantity B simplifies to n10. However, the greater quantity depends on the value of n. If the value is positive, then n17 is greater, but if n is negative, then n10 is the greater value. Since the quantities depend on the value assigned to the variable, the relationship cannot be determined from the information given.
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