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+8jDxpbWcgd2lkdGg9MTM0IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzYyLzczL3JCQUNFMVNnOXhuUy0yN0JBQUFDSzNKQTBKWTkyNy5wbmciPu+8jOino+W+lzxpbWcgd2lkdGg9MzQgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvOEYvMEEvckJBQ0ZGU2c5eG5qOGNkbkFBQUJZUk9FZ1djMzQ4LnBuZyI+
提示2:
IDxpbWcgd2lkdGg9NTUgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMkUvNzQvckJBQ0psU2c5eHF6UEpuUUFBQUJwMTBoSm93NjkyLnBuZyI+5LiN5YWz5LqO5Y6f54K55a+556ew
正确答案:Qw==
6Kej5p6Q77yaPGltZyB3aWR0aD0xNDEgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMkUvQjIvckJBQ0oxU2c5eG53OGN1ZEFBQUNscjM2SjV3NDk3LnBuZyI+77yM5YiZPGltZyB3aWR0aD0xMzQgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvNjIvNzMvckJBQ0UxU2c5eG5TLTI3QkFBQUNLM0pBMEpZOTI3LnBuZyI+77yMPGltZyB3aWR0aD05NiBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8yRS9CMi9yQkFDSjFTZzl4cVFNdmRVQUFBQnpTRWZvM002NDcucG5nIj7vvIzliJk8aW1nIHdpZHRoPTM0IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzhGLzBBL3JCQUNGRlNnOXhuajhjZG5BQUFCWVJPRWdXYzM0OC5wbmciPu+8jOWNs+WHveaVsDxpbWcgd2lkdGg9MjggaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvNjIvNzMvckJBQ0UxU2c5eHJ3Vlg4NEFBQUJpeDZKWVpvMjY4LnBuZyI+55qE5a6a5LmJ5Z+f5pivPGltZyB3aWR0aD01NSBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yRS83NC9yQkFDSmxTZzl4cXpQSm5RQUFBQnAxMGhKb3c2OTIucG5nIj7vvIzlrprkuYnln5/kuI3lhbPkuo7ljp/ngrnlr7nnp7DvvIzmiYDku6U8aW1nIHdpZHRoPTI4IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzYyLzczL3JCQUNFMVNnOXhyd1ZYODRBQUFCaXg2SllabzI2OC5wbmciPuaXouS4jeaYr+Wlh+WHveaVsOWPiOS4jeaYr+WBtuWHveaVsOOAguaVhemAiUM=