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题目内容
（甘肃开放大学高等数学）
下列函数中为奇函数是（ ）．
<img src="data:image/png;base64,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" >
单选题 (5 分) 5分
A.
B.
C.
D.
<img src="data:image/png;base64,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" >
单选题 (5 分) 5分
A.
B.
C.
D.
参考答案