51.Amonglower-paidworkers,unionmembersarelesslikelythannonunionmemberstobeenrolledinlower-endinsuranceplansimposingstricterlimitsonmedicalservicesandrequiringdoctorstoseemorepatients,andspendlesstimewitheach.(A)imposingstricterlimitsonmedicalservicesandrequiringdoctorstoseemorepatients,andspend(B)imposingstricterlimitsonmedicalservices,requiringdoctorstoseemorepatients,andspending(C)thatimposestricterlimitsonmedicalservices,requiredoctorstoseemorepatients,andspend(D)thatimposestricterlimitsonmedicalservicesandrequiredoctorstoseemorepatients,spending(E)thatimposestricterlimitsonmedicalservices,requiringdoctorstoseemorepatientsandspending考察and的平行问题imposing和requiring平行，但是andspend没有平行对象Imposing,requiring和spending平行，结构对，但是语义无法平行，因为spending和其他两个概念不一样Impose,require和spend的平行，同BImpose和require平行，spend做see的伴随状语，逻辑语义对Require和spend在概念上不能平行并列的52.InDecemberof1987anautomobilemanufacturerpleadednocontesttocriminalchargesofodometertamperingandagreedtopaymorethan$16millionincivildamagesforcarsthatweretest-drivenwiththeirodometersdisconnected.(A)carsthatweretest-drivenwiththeirodometersdisconnected(B)carsthatithadtest-drivenwiththeirdisconnectedodometers(C)itscarshavingbeentest-drivenwithdisconnectedodometers(D)havingtest-drivencarswiththeirodometersdisconnected(E)havingcarsthatweretest-drivenwithdisconnectedodometers考察with的修饰问题With短语放在句子中只能就近修饰前面的名词，而不能修饰其他词性，因为test-driven不是名词，所以只有D正确53.Accordingtotwoteamsofpaleontologists,recentfossildiscoveriesinPakistanshowthatwhales,porpoises,anddolphinsaremorecloselyrelatedtosomeoftheoldestknowneven-toedungulates--agroupofhoofedmammalsthattodayincludescows,camels,pigs,andhippos--thantoanyothermammals.(A)thatwhales,porpoises,anddolphinsaremorecloselyrelatedtosomeoftheoldestknowneven-toedungulates--agroupofhoofedmammalsthattodayincludescows,camels,pigs,andhippos--than(B)thatwhales,porpoises,anddolphinsaremorecloselyrelatedtosomeoftheoldestknowneven-toedungulates--agroupofhoofedmammalsthattodayincludecows,camels,pigs,an