—Summer.
A:season
B:fruit
C:sport
(Ⅰ)求函数g(x)的极值;
(Ⅱ)设m=1,a<0,若对任意的x1,x2∈3,4(x1≠x2), |f(x2)−f(x1)|<|1g(x2)−1g(x1)| 恒成立,求实数a的最小值.
⒈重点短语:have to, look after, at home
⒉重点句式:①Thanks for… ②…can do sth. ③…be+v.-ing
Susan,
I'm sorry I can't……
Yours
Jane
下列名句体现中华民族精神的有( )①“天下兴亡,匹夫有责”②“好雨知时节,当春乃发生”③“欲穷千里目,更上一层楼”④“富贵不能淫,贫贱不能移,威武不能屈”