混凝土模板用胶合板与面板的层数不少于( )层。A.1 B.3 C.5 D.7 发布时间:2018-01-08 13:01 │ 来源:www.tikuol.com 题型:单项选择题 问题: 混凝土模板用胶合板与面板的层数不少于( )层。A.1B.3C.5D.7
题型:单项选择题 A library with five thousand books _____ to the nation as a gift.A. is offeredB. has offered C. are offered D. have offered 查看答案