— Mrs. White. She has lived in China for years. _____ Chinese is very good.
A:you; Her
B:your; Hers
C:you; Him
D:your; She
已知函数f(x)=x+ax﹣4,g(x)=kx+3
(Ⅰ)当a∈3,4时,函数f(x)在区间1,m上的最大值为f(m),试求实数m的取值范围
(Ⅱ)当a∈1,2时,若不等式|f(x1)|﹣|f(x2)|<g(x1)﹣g(x2),对任意x1,x2∈2,4(x1<x2)恒成立,求实数k的取值范围.
计算(2a2b)2的正确结果是( )
下列叙述正确的是