Which of these methods did Madeod NOT make useof in Durban?
A. repairing water pipe
B. replacing toilets
C. installing water meters
D. building a new dam
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Which of the following did Sandra Postel mean by "waterconervation is where the big gains are to be made"(lines130-132)?
A. Water conservation is an opportunity for large profitsfor businesses.
B. Water conservation is the most effective method toaddress water shortages
C. Water conservation technology is still in need of manyimprovements
D. Water conservation is required by law in order toensure large gains
影响体重的最基本要素（ ）
A. 饮食和运动
B. 脂肪量和非脂肪量
C. 含水量和肌肉量
D. 热能摄入量和热能消耗量
普通健康成年男性体脂率范围是（）
A. 8%-15%
B. 10%-15%
C. 15%-25%
D. 10%-20%
医事法概念不涵盖下列哪项内容?
A. 国家制定或认可
B. 具有国家强制性
C. 惩罚卫生犯罪的依据
D. 由卫生行政机关负责实施
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