--- Oh, my god. I ______ 2 kg. this month.
--- Don't worry. It's normal for a growing teenage girl.
A:put up
B:put off
C:put on
D:put down
一组数据4,5,7,7,8,6的中位数和众数分别是( )
明人朱载堉在《十不足》歌写道:“逐日奔忙只为饥,才得有食又思衣。置下绫罗身上穿,抬头又嫌房屋低。……若非此人大限到,上到天上还嫌低。”这说明( )