Information Sheet
I join a ____club.
I learn a new ____ there.
I go to the club on ____ after school.
____ likes playing the violin.
I hope I will be a ____ player someday.
如图所示的小丽穿上旱冰鞋向右推墙的情境,下列分析不正确的是( )
(Ⅰ)当a=2时,求函数的单调区间;
(Ⅱ)讨论函数y=f(x)的零点个数,并求出零点.
“小小少年,很少烦恼,眼望四周阳光照。小小少年,很少烦恼,但愿永远这样好。”但是进入青春期后,每一个人都会遇到许许多多的烦恼。面对这些烦恼,我们要( )