挑战习题
1/5单选题
难度:

1.

假设函数是奇函数,则的值是(    )


A

B

C

D


提示1:
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
提示2:
PHA+PGltZyBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzYyLzczL3JCQUNFMVNnLUQtRFRJUk9BQUFDSnRqSHl3WTA5OS5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNjIvNzMvckJBQ0UxU2ctRC1EVElST0FBQUNKdGpIeXdZMDk5LnBuZyIgaGVpZ2h0PSIyMSIgd2lkdGg9IjExOCI+PC9wPg==
提示3:
PHA+PGltZyBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzYyLzczL3JCQUNFMVNnLUQtZ25YbGNBQUFDZTVMbnNCZzA2MS5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNjIvNzMvckJBQ0UxU2ctRC1nblhsY0FBQUNlNUxuc0JnMDYxLnBuZyIgaGVpZ2h0PSIyMSIgd2lkdGg9IjE1OCI+PC9wPg==
正确答案:RA==
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