使舵力减小的因素包括(): Ⅰ排出流Ⅱ伴流Ⅲ失速现象Ⅳ空泡现象A.Ⅰ~Ⅳ B.Ⅰ~Ⅲ 发布时间:2017-09-27 07:50 │ 来源:www.tikuol.com 题型:单项选择题 问题: 使舵力减小的因素包括():Ⅰ排出流Ⅱ伴流Ⅲ失速现象Ⅳ空泡现象A.Ⅰ~ⅣB.Ⅰ~ⅢC.Ⅱ~ⅢD.Ⅰ、Ⅱ、Ⅳ
题型:单项选择题 A railway station is no place for a child _____ alone at night. A.leaveB.leaving C.to be leavingD.to be left 查看答案