作者: John J. Pikulski
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摘要: Slavin, Madden, Karweit, Dolan, and Wasik (1991) write of a mythical town where 30% the children were falling ill from contaminated drinking water. Many became permanently disabled; many died. The spent millions for medical care these victims. At one point, engi neer proposed building water treatment plant that could virtually eliminate nesses. council rejected propos al as being too expensive, because funds would not then be sufficiently available to treat current victims some 70% never fell ill.