题目2【单选题】z_(1)=2+3i,那么|z|=( )A. 13B. 1C. sqrt(5)D. sqrt(13)2【单选题】$z_{1}=2+3i$,那么|z|=( )A. 13B. 1C. $\sqrt{5}$D. $\sqrt{13}$题目解答答案D. $\sqrt{13}$