将下列单词组成句子,(注意首字母的写法及标点符号)。 1. you how are (?) ______________________________ 2.is in what English this (?) _________________________________ 3.am thanks I fine (.) __________________________ 4..it color is what (?) ________________________________ 5.evening Bob good(.) __________________________ 6. jacket, the, is, black (.)__________________________(本小题满分12分)
已知函数是的一个极值点.
(1)求函数的单调区间;
(2)若当时,恒成立,求的取值范围.