挑战习题
1/5单选题
难度:

1.如果不等式组的解集是( )
A
B
C
D
提示1:
5YWI5rGCDQo8aW1nIHdpZHRoPTY3IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0ZDL0I5L3JCQUNGRk1KeFRyVDE0aDFBQUFCcEFVcTRWMDQzMy5wbmciPueahOino++8jOWGjeaxgjxpbWcgd2lkdGg9ODUgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMUYvQTMvckJBQ0UxTUp4VHJTRkhqeUFBQUI2VjA3SFZnNjM3LnBuZyI+55qE6Kej
提示2:
IOWwhui/meS4pOS4quino+mbhuihqOekuuWcqOaVsOi9tOS4iu+8jOWPluS6pOmbhuWNs+WPr+W+l+S4jeetieW8j+e7hOeahOino+mbhg==
正确答案:Qw==
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