【单选题】Read Text A of Unit 6 in sense groups, and then complete the following questions. The Maastricht Treaty required all the member countries to integrate and coordinate their ______ in order to prepare f...
【简答题】(fresh water 淡水,湖水;shortage n. 不足,缺乏;inexhaustible adj. 用不完的,用之不竭的;tap n.水龙头;consider 考虑,思考;population n. 人口;development of industry and agriculture 工业和农业的发展;pollute 污染;in a word adv. 总之;water resourc...