共用题干 In an age when technology is developing faster than ever before,many people are being ________(51)to the idea of looking back into the past.One way they can do this is by investigating their own family history.They can try to_________(52)out more about where their families came from and what they did.This is now a fast-growing hobby,especially in countries with a ________(53)short history,like Australia and the United States. It is__________(54)thing to spend some time__________(55)through a book on family history and to take the_________(56)to investigate your own family's past.It is__________(57)another to carry out the research work successfully.It is easy to set about it in a disorganized way and __________(58)yourself many problems which could have been_________(59)with a little forward planning. If your own family stories tell you that you are_________(60)with a famous character,whether hero or criminal,do not let this idea take over your research.Just _________(61) it as an interesting possibility. A simple system_________(62)collecting and storing your information will be ad-equate to start with;a more complex one may only get in your_________(63).The most important thing,though,is to___________(64)started.Who knows what you__________(65)find? _________(58) A:produce B:cause C:build D:create
共用题干 Scientists Develop Ways of Detecting Heart Attack German researchers have come up with a new generation of defibrillators（除颤器）and early-warning software aimed at offering heart patients greater________ (51)from sudden death from cardiac arrest（心脏 停搏）. In Germany alone,around 100,000 people die annually________(52)a result of cardiac arrest and many of these cases are caused by disruption to the heart's rhythm.Those most at________(53)are pa- tients who have already suffered a heart attack,and for years the use of defibrillators has proved useful in ________(54)life-threatening disruptions to heart rhythms and correcting them automatically by intervening within seconds.These devices________(55)on a range of functions,such as that of pacemaker（起 搏器）. Heart specialists at Freiburg's University Clinic have now achieved a breakthrough with an implanted defibrillator________(56 ) of generating a six-channel electrocardiogram ( EGG，心电图）within the body. This integrated system allows _________( 57 ) diagnosis of severe blood-flow problems and a pending（即将发 生的）heart attack. It will be implanted in _________( 58 ) for the first time this year. Meanwhile , research- ers at the Fraunhofer Institute for Applied Mathematics in Kaiserslautern have developed new computer soft- ware that________(59)the evaluation of EGG data more precise. The overwhelming majority of patients at risk will not have an implanted defibrillator and must for this ________(60)undergo regular EGGs."Many of the current programs only take into________(61)a line- ar correlation of the data. We are,however,making use in a non-linear process________(62)reveals the chaotic patterns of heart beats as an open and complex system,"Hagen Knaf says,"In this way changes in the heart________(63)over time can be monitored and individual variations in patients taken into ac- count."An old study of EGG data,based upon 600 patients who had________(64)a subsequent heart attack,enabled the researchers to compare risks and to show that the new software evaluates the________ (65)considerably better. _________(64) A:suffered B:launched C:avoided D:started
