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1.函数的奇偶性是(    )
A: 奇函数
B: 偶函数
C: 既不是奇函数又不是偶函数
D: 既是奇函数又是偶函数
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  • 提示2IDxpbWcgd2lkdGg9NTUgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvRTMvQjIvckJBQ0UxUDJvSG14NEtnRUFBQUJwMTBoSm93NzgwLnBuZyI+5LiN5YWz5LqO5Y6f54K55a+556ew