A中artorian trucking companies have so far used triple-trailer trucks on lightly traveled sections of major highways only. trucking companies 卡车公司让三节车只在路况好的告诉公路行驶,并不能代表整个Partorian 地区所有的三节卡车都如此. 故A选项以偏概全,错! 支持E,这其实是一道数学题。就像前面有一题雨量的CR 按照题设:The very largest trucks—those with three trailers—had less than a third of the accident rate of single-and double-trailer trucks.
而如果E的话,假设运同样一批货物,一节卡车运的次数为3,那么三节车运的次数肯定多于1次。想想如果某批货动用3量一节卡车,那3节车的哥们就得跑两次。这样根据less than a third of the accident rate ,这还指不定这个替代方法是好的。所以E削弱 |