“何谓三民主义呢？简单地说，便是民有、民治、民享。详细地说，便是民族主义、民权主义和民生主义。……三民主义是为人民而设的，是为人民求幸福的。”孙中山的这番讲话强调了( )
A：三民主义理论中以民为本的思想
B：三民主义的理论来源是天赋人权
C：三民主义的核心主张是民权主义
D：三民主义的前提是实现民族独立
已知命题p:∃x0∈R*,log2x0=1，则¬p是（ ）
阅读理解,根据短文内容选择最佳选项。
Today is Saturday. It's rainy. John's family is at home. His father Mr Jones is reading a book in the study. His mother is cooking in the kitchen. His brother Tom and his friend Mike are playing computer games in the bedroom. His grandpa and grandma are watching TV in the living room.
北温带和北寒带的分界线是 ( )
