7.
定义在\(R\)上的函数\(f(x)\)满足\(f(x)=\dfrac{{f}{{'}}(1)}{2}\cdot e{{2}^{x-2}}+{{x}^{2}}-2f(0)x\),\(g(x)=f(\dfrac{x}{2})-\dfrac{1}{4}{{x}^{2}}+(1-a)x+a\).
\((\)Ⅰ\()\)求函数\(f(x)\)的解析式;
\((\)Ⅱ\()\)求函数\(g(x)\)的单调区间;
\((\)Ⅲ\()\)如果\(s\),\(t\),\(r\)满足\(|s-r|\leqslant |t-r|\),那么称\(s\)比\(t\)更靠近\(.\)当\(a\geqslant 2\)且\(x\geqslant 1\)时,试比较\(\dfrac{e}{x}\)和\(e^{x-1}+a\)哪个更靠近\(\ln x\),并说明理由.