已知a+b=2,ab=-1,则3a+ab+3b= ▲;a2+b2= ▲. 发布时间:2017-06-03 22:10 │ 来源:www.tikuol.com 题型:填空题 问题: 已知a+b=2,ab=-1,则3a+ab+3b= ▲ ;a2+b2= ▲ .
题型:填空题 We should realize that there are other things that society should value besides high marks,________ honesty and responsibility. [ ]A. for example B. namelyC. such as D. that is 查看答案