搜题
问题详情
It is absolutely vital that food supplies should be maintained.
A:preserved
B:kept
C:supported
D:upheld
未搜索到的试题可在搜索页快速提交，您可在会员中心"提交的题"快速查看答案。
收藏该题
查看答案
搜题
相关问题推荐
共用题干
Can Loud Music Cause Hearing Impairment（损伤）?
Have you ever gone to a concert and realized that your seats were right next to the
booming speakers?Are you guilty_________(1)turning up the volume on your portable
cassette or CD player to drown out the whining（哭哭啼啼）of your little brother?
Sometimes it's difficult to avoid loud music or noises,but they can be bad news because
loud noises can_________(2)temporary or permanent hearing loss.
Extremely loud music and noises that go on for long periods of_______(3)are
common causes of deafness.If a noise is so loud that you have to shout to make yourself
_______(4),there is a______(5)that the mechanism inside your ear can be
injured.
Temporary hearing loss can happen after you've been_______(6)to loud noise
for only 15 minutes.If you have temporary hearing loss,you won't be able to hear as
________ (7) as you normally can, and you may have tinnitus（耳鸣）,which is a
fancy word for ringing in the ears. Your ears can feel"full",too._________（8),
these things usually go away and your hearing soon returns to normal.
Permanent hearing loss can happen when someone is exposed to loud noise
________(9)and over. Construction workers and people who work in factories must
________(10)ear protectors because the equipment they use can be extremely loud.
But even some lawn mowers（割草机）and power tools can permanently__________
(11)a person's ability to hear high-pitched noises and can also give him permanent tinnitus.
Listening to extremely loud music over and over can also have the same effect on a person's
______(12).And using headphones on a portable cassette or CD player can be
dangerous________(13)if the volume is too high and the headphones are used a lot,
the noise can damage the ears.
The best way to avoid hearing loss is to wear ear protectors when working with
machinery and earplugs when going to a_________(14).Headphones are OK to wear
when you're listening to music;just be sure the volume isn't too high,and give them a rest
________(15)once in a while.
_________(10)
A:hear
B:bear
C: wear
D: tear
Can Loud Music Cause Hearing Impairment（损伤）?
Have you ever gone to a concert and realized that your seats were right next to the
booming speakers?Are you guilty_________(1)turning up the volume on your portable
cassette or CD player to drown out the whining（哭哭啼啼）of your little brother?
Sometimes it's difficult to avoid loud music or noises,but they can be bad news because
loud noises can_________(2)temporary or permanent hearing loss.
Extremely loud music and noises that go on for long periods of_______(3)are
common causes of deafness.If a noise is so loud that you have to shout to make yourself
_______(4),there is a______(5)that the mechanism inside your ear can be
injured.
Temporary hearing loss can happen after you've been_______(6)to loud noise
for only 15 minutes.If you have temporary hearing loss,you won't be able to hear as
________ (7) as you normally can, and you may have tinnitus（耳鸣）,which is a
fancy word for ringing in the ears. Your ears can feel"full",too._________（8),
these things usually go away and your hearing soon returns to normal.
Permanent hearing loss can happen when someone is exposed to loud noise
________(9)and over. Construction workers and people who work in factories must
________(10)ear protectors because the equipment they use can be extremely loud.
But even some lawn mowers（割草机）and power tools can permanently__________
(11)a person's ability to hear high-pitched noises and can also give him permanent tinnitus.
Listening to extremely loud music over and over can also have the same effect on a person's
______(12).And using headphones on a portable cassette or CD player can be
dangerous________(13)if the volume is too high and the headphones are used a lot,
the noise can damage the ears.
The best way to avoid hearing loss is to wear ear protectors when working with
machinery and earplugs when going to a_________(14).Headphones are OK to wear
when you're listening to music;just be sure the volume isn't too high,and give them a rest
________(15)once in a while.
_________(10)
A:hear
B:bear
C: wear
D: tear
共用题干
第二篇
Brain-dead Mother Dies after Giving Birth
A brain-dead woman who was kept alive for three months so she could deliver the child
she was carrying was removed from life support on Wednesday and died,a day after giving
birth.
"This is obviously a bittersweet time for our family,"Justin Torres,the woman's
brother-in-law,said in a statement.
Susan Torres,a cancer-stricken,26-year-old researcher at the National Institutes of
Health,suffered a stroke in May after the melanoma（黑瘤）spread to her brain.
Her family decided to keep her alive to give her foetus（胎儿）a chance. It became a
race between the foetus' development and the cancer that was destroying the woman's
body.
Doctors said that Torres' health was getting worse and that the risk of harm to the foetus
finally outweighed the benefits of extending the pregnancy.
Torres gave birth to a daughter by Caesarean section（剖腹产手术）on Tuesday at
Virginia Hospital Center.The baby was two months premature and weighed about a
kilogram.She was in the newborn intensive care unit.
Dr. Donna Tilden-Archer , the hospital's director of neonatology（新生儿学）,described
the child as"very vigorous".She said the baby had responded when she received
stimulation,indicating she was healthy.
Doctors removed Torres from life support early Wednesday with the consent of her
husband , Jason Torres , after she received the final sacrament（圣礼）of the Roman
Catholic Church.
"We thank all of those who prayed and provided support for Susan,the baby and our
family,"Jason Torres said in a statement."We especially thank God for giving us little
Susan.My wife's courage will never be forgotten."
English-language medical}iterature contains at least 11 cases since 1 979 of irreversibly
brain-damaged women whose lives were prolonged for the benefit of the developing foetus,
according to the University of Connecticut Health Center.
Dr.Christopher McManus,who coordinated care for Susan Torres,put the infant's
chances of developing cancer at less than 25 per cent.He said 19 women who have had the
same aggressive form of melanoma as Torres have given birth,and five of their
babies became ill with the disease.
Susan Torres died soon after
A:she suffered a stroke.
B: she became brain-dead.
C: she was diagnosed with cancer.
D:she gave birth to a baby.
第二篇
Brain-dead Mother Dies after Giving Birth
A brain-dead woman who was kept alive for three months so she could deliver the child
she was carrying was removed from life support on Wednesday and died,a day after giving
birth.
"This is obviously a bittersweet time for our family,"Justin Torres,the woman's
brother-in-law,said in a statement.
Susan Torres,a cancer-stricken,26-year-old researcher at the National Institutes of
Health,suffered a stroke in May after the melanoma（黑瘤）spread to her brain.
Her family decided to keep her alive to give her foetus（胎儿）a chance. It became a
race between the foetus' development and the cancer that was destroying the woman's
body.
Doctors said that Torres' health was getting worse and that the risk of harm to the foetus
finally outweighed the benefits of extending the pregnancy.
Torres gave birth to a daughter by Caesarean section（剖腹产手术）on Tuesday at
Virginia Hospital Center.The baby was two months premature and weighed about a
kilogram.She was in the newborn intensive care unit.
Dr. Donna Tilden-Archer , the hospital's director of neonatology（新生儿学）,described
the child as"very vigorous".She said the baby had responded when she received
stimulation,indicating she was healthy.
Doctors removed Torres from life support early Wednesday with the consent of her
husband , Jason Torres , after she received the final sacrament（圣礼）of the Roman
Catholic Church.
"We thank all of those who prayed and provided support for Susan,the baby and our
family,"Jason Torres said in a statement."We especially thank God for giving us little
Susan.My wife's courage will never be forgotten."
English-language medical}iterature contains at least 11 cases since 1 979 of irreversibly
brain-damaged women whose lives were prolonged for the benefit of the developing foetus,
according to the University of Connecticut Health Center.
Dr.Christopher McManus,who coordinated care for Susan Torres,put the infant's
chances of developing cancer at less than 25 per cent.He said 19 women who have had the
same aggressive form of melanoma as Torres have given birth,and five of their
babies became ill with the disease.
Susan Torres died soon after
A:she suffered a stroke.
B: she became brain-dead.
C: she was diagnosed with cancer.
D:she gave birth to a baby.
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
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
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
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
Traffic reaches its rush hour between 8:00 and 9:00 in the morning.
A: border
B: goal
C: peak
D: level
A: border
B: goal
C: peak
D: level
