点P在圆x2+y2-8x-4y+11=0上,点Q在圆x2+y2+4x+2y-1= 发布时间:2017-04-24 14:44 │ 来源:www.tikuol.com 题型:填空题 问题: 点P在圆x2+y2-8x-4y+11=0上,点Q在圆x2+y2+4x+2y-1=0上,则|PQ|的最小值是_ .
题型:填空题 How much does he _____ the train ticket from Wuhan to Beijing?[ ]A. costB. takeC. spend onD. pay 查看答案