《室内装饰装修材料聚氯乙烯卷材地板中有害物质限量》(GB18586--2001)中规 发布时间:2017-06-27 19:15 │ 来源:www.tikuol.com 题型:单项选择题 问题: 《室内装饰装修材料聚氯乙烯卷材地板中有害物质限量》(GB18586--2001)中规定,样品自生产之日起在仓储条件下放置()d后进行试验。A.5B.7C.15D.30
题型:单项选择题 This is the hotel _______last month. A.which they stayed B.at that they stayed C.where they stayed at D.where they stayed 查看答案