题目信息
If x is an odd negative integer and y is an even integer, which of the following statements must be true?
I. (3x - 2y) is odd
II. $$xy^{2}$$ is an even negative integer
III. $$(y^{2} - x)$$ is an odd negative integer
I. (3x - 2y) is odd
II. $$xy^{2}$$ is an even negative integer
III. $$(y^{2} - x)$$ is an odd negative integer
A:I only
B:II only
C:I and II
D:I and III
E:II and III
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正确答案：
A:I only
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Magoosh
