Read the passage carefully, and fill in the blanks with appropriate words.(认真阅读课文,用课文里的词或短语完成下列句子。)1) Solving this problem needs not only carious technologies, but also science and a lot of political _____________.
This is the total number of people who suffer from various diseases that the World Health Organization ________________unsafe drinking supplies.
United Nations officials had expected that these avoidable deaths would become the focus of the world’s news agencies through the report of the 3rd World Water ______.
______________ solutions such as solar-powered desalination plants are very useful.