3.4÷[ （1.25 +0.45） ×23]*X.Z,g5Y*h7t1f2X/d5l:P3F7H1G
算式：提示*c9r8B7o't4V3P,J'U9Y)i:U*X.Z,g5Y*h7t1f2X/d5l:P3F7H1G
=)T/|:\:F7V*X.Z,g5Y*h7t1f2X/d5l:P3F7H1G