已知某批零件的长度误差(单位:mm)服从正-|||-态分布N(0,3^2 ),从中随机取一件,其长度误-|||-差落在区间(3,6 )内的概率为 () 。-|||-(附:若随机变量ξ服从正态分布N(μ,σ^2),-|||-则 (mu -sigma lt xi lt mu +sigma )=68.26% , (mu -2sigma lt -|||-(mu +2sigma )=95.44% )-|||-A.4.56% B.13.59%-|||-C.27.18% D.31.74%