题目

 Shelly had prepared carefully for her driving test so that she could pass it at her first________. A．attempt                   B．intention           C．desire                       D．purpose 答案：A 下列哪些做法或政策不利于农业的可持续发展 ①大搞农田水利基本建设 ②根治淮河 ③围湖造田，毁林开荒 ④实施片面发展重工业的经济战略 [　　] A．①②③④ B．①②③ C．①③④ D．③④