A.they are useless
B.in paper chase
C.that it is easily reached
D.that different people have different requirements
E.they are not comfortable
F.in invesiting in coupons
参考答案D
解析:比较剩下的被选项判断D(不同的人有不同的需求)合适。也可以借助原文:A good filing system is both mentally and physically flexible.Everyone’s needs are different,says Denton,but when devising a filling system,ask yourself:“where would I look for this?”