题目

 When they grew up, they often talked about things and people ____ they remembered during their childhood.   A. in which   B. of which   C. /   D. that 答案：D如果|x+y-3|+x-y-1=0，那么x、y的值是（　　） A、x=2y=1B、x=1y=2C、x=4y=-1D、x=3y=0