伟大领袖毛 * * 在《沁园春•雪》中写到“北国风光,千里冰封,万里雪飘”,形成这种自 发布时间:2017-06-02 07:44 │ 来源:www.tikuol.com 题型:选择题 问题: 伟大领袖毛 * * 在《沁园春•雪》中写到“北国风光,千里冰封,万里雪飘”,形成这种自然景色的主要物态变化是( )A.熔化和汽化B.凝固和液化C.凝固和凝华D.汽化和升华
题型:选择题 Welcome to the zoo Tickets Opening timeAdults:$2.00Children:$1.00Under 12: Free 9:00a.m----4:00p.m.Keep the zoo clean!Do not touch (触摸), give food to or go near the animals.小题1:How many kinds of animals are talked about in the passage?A.FourB.FiveC.SixD.Seven小题2:Now Mr. Smith is in the zoo with his two sons, one aged 14 and the other is 10.How much are the tickets altogether(总共)?A.$4.00B.$2.00C.$3.00D.$1.00小题3:Which of the following can we do in the zoo?A.Take a few nice photos.B.Give some food to the fish.C.Touch the monkey on the head.D.Throw things everywhere. 查看答案
题型:选择题 若关系R、S如下图所示,π1,3,7(σ3<6(R×S))= (30) ,且结果集的元组列数和元组个数分别为 (31) ,R÷S= (32) 。 A.ORDER BY 供应商B.ORDER BY 零件号C.GROUP BY 供应商D.GROUP BY 零件号 查看答案