第13题: [单项选择]{{B}}Passage One
Questions 26 to 28 are based on the passage you have just heard.{{/B}} A. Seventy percent. B. Fifty-four percent. C. Seventeen percent. D. Fifty percent. 参考答案:A 答案解析:[听力原文]26-28
Everywhere, water use is increasing. Humans already use fifty-four percent of all th