2018 National Question 2 Single-choice Differentiating 2018_新课标III Paper 2.(5分)(1+i)(2﹣i)=( ) A. ﹣3﹣iB. ﹣3+iC. 3﹣iD. 3+i Answer keyD ☆ SaveCan't do it, show the explanation查看原卷 →