① ② ③ ④
____—Who is she? —She's my grandmother.
____—Who's he? —He's my grandfather.
____—Who's he? —He's my father.
____—Who is she? —She's my mother.
“一个人的绝对权力阻碍了国家的发展,不限制这种权力,国家便无法进步.”英国限制“一个人的绝对权力”的典型文献是( )
若2am+2b2n+2与a3b8的和仍是一个单项式,则m与n 的值分别是( )