2007年GMAT考试最新逻辑推理仿真试题训练十二(1)

1.Toughe***d hir***g standards h**e not been the primary c***se of the present staff***g ***rtage *** pub***c schools. The ***rtage of teachers is primarily c***s*** by the fact that *** recent years teachers h**e not experienc*** any improve***nts *** w***k***g ***nditions and their salaries h**e not kept pace with salaries *** other professions.Wh***h of the follow***g, if true, would most supp***t the claims above?

　　（A） Many teachers already *** the profession would not h**e been hir*** under the ***w hir***g standards.
　　（B） Today m***e teachers are enter***g the profession with a higher ***ucational level than *** the past.
　　（C） So*** teachers h**e cit*** higher standards f*** hir***g as a reason f*** the current staff***g ***rtage.
　　（D） Many teachers h**e cit*** low pay and lack of professional fre***om as reasons f*** their le*****g the profession.
　　（E） Many prospective teachers h**e cit*** the ***w hir***g standards as a reason f*** not enter***g the profession.

　　2.A propos*** ***d***ance requires the ***stallation *** ***w ho***s of spr***klers ******mat***ally trigger*** by the presence of a fire. However, a ho*** builder argu*** that bec***se m***e than n***ety percent of residential fires are ext***guish*** by a household ***mber, residential spr***klers would o***y marg***ally decrease property damage c***s*** by residential fires.Wh***h of the follow***g, if true, would most seriously weaken the ho*** builder's argu***nt?

　　（A） Most ***di***duals h**e no f***mal tra******g *** how *** ext***guish fires.
　　（B） S***ce ***w ho***s are o***y a t***y percentage of **ailable hous***g *** the city, the ***w ***d***ance would be extre***ly narrow *** s***pe.
　　（C） The ***stallation of smoke detec***rs *** ***w residences ***sts signif***antly less than the ***stallation of spr***klers.
　　（D） In the city where the ***d***ance was propos***, the **erage ti*** requir*** by the fire depart***nt *** respond *** a fire was less than the national **erage.
　　（E） The largest prop***tion of property damage that resu***s from residential fires is c***s*** by fires that start when no household ***mber is present.

　　3.Even though most univer***ies reta*** the roya***ies from facu***y ***mbers' ***ventions, the facu***y ***mbers reta*** the roya***ies from books and art***les they write. Theref***e, facu***y ***mbers ***uld reta*** the roya***ies from the ***ucational ***mputer software they develop.The ***nclusion above would be m***e reasonably drawn if wh***h of the follow***g were ***sert*** ****** the argu***nt as an additional premise?

　　（A） Roya***ies from ***ventions are higher than roya***ies from ***ucational software programs.
　　（B） Facu***y ***mbers are m***e ***kely *** produce ***ucational software programs than ***ventions.
　　（C） Inventions br***g m***e prestige *** univer***ies than do books and art***les.
　　（D） In the experience of most univer***ies, ***ucational software programs are m***e marketable than are books and art***les.
　　（E） In terms of the criteria us*** *** award roya***ies, ***ucational software programs are m***e ***arly ***mparable *** books and art***les than *** ***ventions.

　　4.Increases *** the level of high-den***y ***poprote*** （HDL） *** the human bloodstream lower bloodstream-cholesterol levels by ***creas***g the body's capacity *** rid itself of excess cholesterol. Levels of HDL *** the bloodstream of so*** ***di***duals are signif***antly ***creas*** by a program of regular exercise and weight r***uction.Wh***h of the follow***g can be ***rrectly ***ferr*** from the state***nts above?

　　（A） Indi***duals who are underweight do not run any risk of develop***g high levels of cholesterol *** the bloodstream.
　　（B） Indi***duals who do not exercise regularly h**e a high risk of develop***g high levels of cholesterol *** the bloodstream late *** ***fe.
　　（C） Exercise and weight r***uction are the most effective ***thods of lower***g bloodstream cholesterol levels *** humans.
　　（D） A program of regular exercise and weight r***uction lowers cholesterol levels *** the bloodstream of so*** ***di***duals.
　　（E） O***y regular exercise is ***cessary *** decrease cholesterol levels *** the bloodstream of ***di***duals of **erage weight.

　　5.When ***mitations were *** effect on nuclear-arms test***g, people tend*** *** s**e m***e of their mo***y, but when nuclear-arms test***g ***creas***, people tend*** *** spend m***e of their mo***y. The perceiv*** threat of nuclear catastrophe, theref***e, decreases the wil***ng***ss of people *** postpo*** ***nsumption f*** the sake of s*****g mo***y.The argu***nt above assu***s that

　　（A） the perceiv*** threat of nuclear catastrophe has ***creas*** over the years
　　（B） most people supp***t*** the develop***nt of nuclear arms
　　（C） people's perception of the threat of nuclear catastrophe depends on the amount of nuclear-arms test***g be***g do***
　　（D） the people who s***** the most mo***y when nuclear-arms test***g was ***mit*** were the o***s who supp***t*** such ***mitations
　　（E） there are m***e ***nsu***r ***ods **ailable when nuclear-arms test***g ***creases