题目

It took her many years to ___ from the fact   her son died. A. get over, which   B. get away, that  C. get out of, that  D. get away, which 答案：B已知i为虚数单位，复数z1=a+i，z2=2-i，且|z1|=|z2|，则实数a的值为（ ）A．2B．-2C．2或-2D．±2或0