4．
设\((1-x)^{n}=a_{0}+a_{1}x+a_{2}x^{2}+…+a_{n}x^{n}\)，\(n∈N^{*}\)，\(n\geqslant 2\)．
\((1)\)设\(n=11\)，求\(|a_{6}|+|a_{7}|+|a_{8}|+|a_{9}|+|a_{10}|+|a_{11}|\)的值；
\((2)\)设\(b_{k}= \dfrac{k+1}{n-k}a_{k+1}(k∈N,k\leqslant n-1)\)，\(S_{m}=b_{0}+b_{1}+b_{2}+…+b_{m}(m∈N,m\leqslant n-1)\)，求\(\left| \left. \dfrac{S_{m}}{C\rlap{^{m}}{_{n-1}}} \right. \right|\)的值．