【单选题】
A、BECAusE thEy pollutE Air.
B、BECAusE thEy ArE nAturAl hAzArDs.
C.BECAusE thEy ArE inCrEAsing in numBErs.
D.BECAusE pEoplE Don’’t wAlk so oFtEn.
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根据网考网移动考试中心的统计,该试题:
6%的考友选择了A选项
3%的考友选择了B选项
11%的考友选择了C选项
80%的考友选择了D选项