GWD-8-Q21:GWD-2-18 Last year all refuse collected by Shelbyville city services was incinerated. This incineration generated a large quantity of residue ash. In order to reduce the amount of residue ash Shelbyville generates this year to half of last year's total, the city has revamped its collection program. This year city services will separate for recycling enough refuse to reduce the number of truckloads of refuse to be incinerated to half of last year's number. Which of the following is required for the revamped collection program to achieve its aim? 答案:看不懂答案 The refuse incinerated this year will generate no more residue ash per truckload incinerated than did the refuse incinerated last year. 有人可以帮忙解释一下吗?? --

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