A:
B:
C:
D:
复数(1+1i)2的值是 ( )
—It was simply _______. He meant no offence by it.
在实验技能测试时,实验桌上有两个烧杯分别装有盐水和纯水,其标签已模糊不清,现有天平、量筒、烧杯、刻度尺、小木块,不能把他们区分开的器材组合是( )