答:可以生产112千克的再生纸.
点A(x1,y1)、B(x2,y2)分别在双曲线y=﹣1x的两支上,若y1+y2>0,则x1+x2的范围是 ____.
We____ ____at 4:00 in the afternoon and____ ____we go home together.