题目已知12.34=3.512\sqrt{12.34}=3.51212.34=3.512,123.4=11.108\sqrt{123.4}=11.108123.4=11.108,则1234=( )\sqrt{1234}=\left(\ \ \right)1234=( )A.35.1235.1235.12B.351.2351.2351.2C.111.08111.08111.08D.1110.81110.81110.8知识点：十字相乘法章节：数与式 / 因式分解
