Read the following SAT test question and thenclick on a button to select your answer.

　　The sum of the positive odd integers less than 50 issubtrACTed from the sum of the positive evenintegers less than or equal to 50. What is theresulting difference?

　　(A) 0

　　(B) 25

　　(C) 50

　　(D) 100

　　(E) 200

　　答案：B

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