挑战习题
1/5单选题
难度:

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
提示1:
IOWFiOeci+WHveaVsOeahOWumuS5ieWfn+aYr+WQpuWFs+S6juWOn+eCueWvueensO+8jDxpbWcgd2lkdGg9MTM0IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0I2LzZBL3JCQUNGRlAyb0htd3haODNBQUFDS3d6cTRkNDA4MS5wbmciPu+8jOino+W+lzxpbWcgd2lkdGg9MzQgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvQjYvNkEvckJBQ0ZGUDJvSG1RZTdyTUFBQUJZVHFsRUVRNDA2LnBuZyI+
提示2:
IDxpbWcgd2lkdGg9NTUgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvRTMvQjIvckJBQ0UxUDJvSG14NEtnRUFBQUJwMTBoSm93NzgwLnBuZyI+5LiN5YWz5LqO5Y6f54K55a+556ew
正确答案:Qw==
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