已知x,y满足约束条件x-y+5≥0x+y≥0x≤3,则z=x+2y的最小值为_ 发布时间:2017-05-11 22:35 │ 来源:www.tikuol.com 题型:填空题 问题: 已知x,y满足约束条件x-y+5≥0x+y≥0x≤3,则z=x+2y的最小值为______.
题型:填空题 The education of _____ young is always _____ hot and serious topic in China. [ ]A. /; aB. the; a C. /; the D. the; / 查看答案