已知函数f(x)=log2(m+m-1x-1)(m∈R,且m>0).
(1)求函数f(x)的定义域;
(2)若函数f(x)在(4,+∞)上单调递增,求m的取值范围.
The workers are busy _______ windows to the new building these days.
一千七百零七万五千四百 写作:____
九百九十七万零六百一十 写作:____
九百六十万 写作:____