单选题
Recycling has become the first choice for the disposal of rubbish because __________.
A、
recycling causes little pollution
B、
other methods are more expensive
C、
recycling has great appeal for the jobless
D、
local governments find it easy to manage
【正确答案】
B
【答案解析】
辨认事实题。本题询问为什么回收利用成为了垃圾处理的第一选择。由第4段第2句“recycling is already the least expensive waste-management option．”可知[B]“其他方法更昂贵”为正确答案。
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