题目: 某城市对商品房的销售进行了如下统计,2004年商品房售出了5000套,2006年售出了7200套,这两年平均每年销售商品房的增长率是多少? 答案: 解:设增长率为x 则5000(x+1)2=7200 解得x=20%。
题型:单项选择题 “产地证书;熏蒸证书”正确的翻译为( )。A.Certificate of Origin; Certificate of FumigationB.Certificate of Fumigation; Certificate of OriginC.Certificate of quality; Certificate of OriginD.Certificate of Origin; Certificate of Quality 查看答案