A.It is safer than regular X rays. |
B.It makes use of computer techniques. |
C.It can stop the action of an organ for a short time. |
D.It gives clear pictures of active, moving body parts. |
A.a(chǎn) badly injured part inside the body |
B.a(chǎn) new thing that is unknown to the doctor |
C.a(chǎn) strange organ that has grown in the body |
D.a(chǎn)n object that gets inside the body by chance |
A.It provides clear photos of moving organs. |
B.It can take 3-dimension(三維)pictures of inside organs. |
C.It won’t cause serious skin burns, cancer or other damage to the body. |
D.It helps to find out what is going on inside a person’s body without opening it up. |
A.patients in front of CAT may suffer from a bit of radiation |
B.doctors need no opening-up of the body with CAT scanners |
C.CAT scanners are more expensive than regular X-ray machines |
D.CAT scanners can take photos of either the whole body or a part of it |
A.the Newest Medical Invention |
B.New X-ray Machine to Save Lives |
C.How to Avoid the Damage of X Rays |
D.Advantages and Disadvantages of CAT Scanners |
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C.Its ability to resist disasters is incredible. |
D.It is an indispensable device on an airplane. |
A.Data for analyzing the cause of the crash. |
B.The total number of passengers on board. |
C.The scene of the crash and extent of the damage. |
D.Homing signals sent by the pilot before the crash. |
A.New materials became available by that time. |
B.Too much space was needed for its installation. |
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D.The early models didn't provide the needed data. |
A.To distinguish them from the colour of the plane. |
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C.To make them easily identifiable. |
D.To conform to international standards. |
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A.Because he changed his mind about getting a sunset |
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A.earthquakes are happening more often because of human beings |
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A.list the natural disasters that occurred in 2010 |
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A.visiting News & Events page |
B.surfing Member Resources page |
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A.One | B.Two | C.Three | D.Four |
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