2018 National Question 1 Single-choice Differentiating 2018_新课标 II 卷 (2018·文) 1.$(5$ 分 $) i(2+3 i)=$ A. $3-2 \mathrm{i}$B. $3+2 i$C. $-3-2 \mathrm{i}$D. $-3+2 \mathrm{i}$ Answer keyD ☆ SaveCan't do it, show the explanation查看原卷 →