题目

你是Jack, 五年后再次来到这个城市，发现它变化很大，如图所示。你给朋友Mary 发电子邮件，告诉她这里的变化。信的开头已为你写好。 注意：1. 字数: 约100字. 2. 词汇: 立交桥. overpass. Dear Mary, The city has changed a lot in the past five years. 答案：This city has changed a lot in the past 5 years and it is no longer what it used to be. First，more high buildings have appeared，which are modern and beautiful. Many overpasses have been set up，and therefore it has become very convenient for people to travel. Besides，many families have got cars of their own. The people's life here has become rich and colorful. People can enjoy themselves tr下列说法正确的是（ ）A.降低温度能使任何不饱和溶液转化为饱和溶液B.升高温度或增大压强均可以增大气体在水中的溶解度C.将200g质量分数为10%的氯化钠溶液稀释到5%，需要加水200gD.在溶液中加入KNO3晶体和蒸发溶液中的水分这两种方法，都能把8%的KNO3溶液变成15%的KNO3溶液