题目

 To meet the requirement, you’d better ______ at least an hour each day for practising your writing skills.  A. set off   B. set out   C. set aside    D. set down 答案：C读“我国某区域图”，分析回答相关问题。（10分）(1)图中A地区近年来已成为我国重要的葡萄酒酿造原料生产基地，该地区有利于葡萄种植的自然条件是（3分）                                                                                                                                                                   。 (2)图中A地区农业发展中存在较明显的土壤盐碱化问题，其产生的原因有                                                                 。(3)图中B处在汉朝时还是水草丰美的大草原，而现在已变成一片沙漠，其人为原因是                                                                                                                                       。(4)图示区域内甘肃、宁夏在黄河附近形成一条“工业长廊”，根据图中信息判断该地工业发展的有利条件                                                                                                                                              。