2017
年12月英语四级考试仔细阅读训练题
　　task
1　　Just
seven
years
ago,
theJarvik-7
artificial
heart
wasbeing
cheered
asthemodel
ofhuman
creativeness.
Thesight
ofBarney
Clark-alive
andconscious
after
trading
hisdiseased
heart
forametal-and-plastic
pump-
convinced
thepress,
thepublic
andmany
doctors
that
thefuture
hadarrived.
Ithadn
’t.After
monitoring
production
oftheJarvik-7,
andreviewing
itseffects
onthe150orsopatients
(most
ofwhom
gotthedevice
asatemporary
measure)
theU.S.
Food
andDrug
Administration
conclud ...