2020 National Question 1 Single-choice Differentiating 2020_新课标I Paper 1.若$z=1+i$,则|z<sup>2</sup>–$2z|=$( ) A. 0B. 1C. $\sqrt { 2 }$D. 2 Answer keyD ☆ SaveCan't do it, show the explanation查看原卷 →