挑战习题
1/5单选题
难度:

1.

化简 的结果是( )


A

B

C

D

提示1:
PHA+PGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzI4LzE1L3JCQUNFMU1QT0N5eWw3eWVBQUFMMWlfNW9zYzIxMi5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMjgvMTUvckJBQ0UxTVBPQ3l5bDd5ZUFBQUwxaV81b3NjMjEyLnBuZyIgYWx0PSIiIHN0eWxlPSJ3aWR0aDogMzU3cHg7IGhlaWdodDogODdweDsiPjxicj48L3A+
提示2:
PHA+5a+55bqU5o+Q56S65LiA55qE5pa55rOV77yM5Luj5YWl5rGC5Ye657uT5p6cPGJyPjwvcD4=
正确答案:QQ==
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