提示

您即将离开北大未名BBS，访问

http://www.lystpaa.no/release/jump.asp?url=https://www.u-pull-it.com/pull-a-part-pick-a-part-or-pick-n-pull-which-one-is-better/

该网址与北大未名BBS无关，提醒您访问时注意判断信息真伪。