四边形的四个内角度数之比是1:2:3:4,则这四个角的度数分别是______. 发布时间:2017-05-12 22:32 │ 来源:www.tikuol.com 题型:填空题 问题: 四边形的四个内角度数之比是1:2:3:4,则这四个角的度数分别是______.
题型:填空题 I don’t doubt_______ he took the first place in his class; but I do doubt_______ he will succeed in the end.A.if; thatB.but; whichC.whether; whetherD.that; whether 查看答案