题目

根据问句选答句。How old are you?A. I'm 10.Happy birthday！B. Sure. Here you are.How are you?C. Thank you.Can I have some juice? D. I'm fine, thank you.Let's eat the cake.E. Ok. 答案：【1】A【2】C【3】D【4】B【5】E1．若复数z满足（1-i2）z=1+i3，则z的虚部为（　　）A．0B．$\frac{1}{2}$C．1D．-$\frac{1}{2}$