题目内容
（请给出正确答案）
On the brink of matrimony, he fled to a desert island.
A．ship
B．proposal
C．edge
D．evasion
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更多“On the brink of matrimony, he …”相关的问题
A．of
B．onto
C．in
D．into
The company had huge debts and was______bankruptcy.
A．on the crest of
B．on the borderline of
C．on the brink of
D．on the surface of
听力原文：M: Does this bus go to the Oxford Street？
W: I am afraid not. But you can get off at the brink and take No. 19 bus to get there.
Where is the man going？
A．TO the bank.
B．To the hotel.
C．To Oxford street.
Which of the following statements is INCORRECT about the town？
A．The town seems to be in a terribly run-down state.
B．The weather of the town is agreeable in winter.
C．The largest building is on the brink of collapse.
D．In summer, people can see a figure in the largest building.
A．It indicated the birth of a very fast airplane．
B．It was self-powered，so it lasted only 1 l seconds．
C．It can transport cargo quickly and cheaply to the brink of space
D．It is a major milestone in the journey of making a new type of Very fast airplanes
What did Werner J.A Dahm of the University of Michigan say about the Hyper-X test flight？
A．It indicated the birth of a very fast airplane.
B．It was self-powered, so it lasted only 11 seconds.
C．It can transportcargo quickly and cheaply to the brink of space.
D．It is a major milestone in the journey of making a new type of very fast airplanes.
First Self ContainedHeart Implanted
？？A patient on the brink ofdeath has received the world's first self-contained artificial heart-a bat-tery powered device about the size of a softball that runs without the need forwires, tubes or hoses sticking out of the chest.？？？？
？？ Two surgeons from the University of Louisvilleimplanted the titanium and plastic pump during a seven-hour operation at JewishHospital Monday. The hospital said the patient was "awake andre-sponsive" Tuesday and resting comfortably. It refused to releasepersonal details.
？？ The patient had been expectedto die within a month without the operation, and doctors said they expected theartificial heart to extend the person's life by only a month But the device isconsidered a major step toward improving the patient's quality of life.？？
？？ The new pump, called AbioCor, is also a technological leap from the mechanical hearts used in the 1980s,which were attached by wires and tubes to bulky machinery outside the body. Themost fa- mous of those, the Jarvic-7, used air as a pumping device and wasattached to an apparatus about the size of a washing machine.？？
？？ "I think it'spotentially a major step forward in the artificial heart development,"said Dr. David Faxon, president of the American Heart Association. However, hesaid the dream of an implantable, permanent artificial heart is not yet areality: "This is obviously an experimental device whose long-term successhas to be demonstrated. " Only about half of the 4, 200 Americans on awaiting list for donor hearts receivedthem last year, and most of the rest died:？？
？？ Some doctors, includingRobert Higgins, chairman of cardiology at the Medical Colle？？ge of Virgin-ia in Richmond, said artificial hearts are unlikely to replacedonor hearts.
？？ "A donor heart in a goodtransplant can last 15 t0 30 years, " he said. "It's going to be hardto re-place that with a machine. "
？？ The Abil Cor has a 2-poundpumping unit, and electronic controls that adjust the pumping？？ speed based onthe body's needs. It is powered by a small battery pack worn outside the bodythat transmits current through the skin.
The pump of the first implanted self-contained heart was made of titanium andplastic？？？？？？？？？？？？
A.Right
B.Wrong
C.Not mentioned
根据以下材料，回答题
First Self-Contained Heart Implanted （首例整套人工心脏移植）
A patient on the brink of death has received the world"s first self-contained artificial heart – a battery-powered device about the size of a softball that runs without the need for wires， tubes or hoses sticking out of the chest.
Two surgeons from the University of Louisville implanted the titanium and plastic pump during a sever-hour operation at Jewish Hospital Monday. The hospital said the patient was "awake and responsive" Tuesday and resting comfortably. It refused to release personal details.
The patient had been expected to die within a month without the operation， and doctors said they expected the artificial heart to extend the person"s life by only a month. But the device is considered a major step toward improving the patient"s quality of life.
The new pump， called AbioCor， is also a technological leap from the mechanical hearts used in the 1980s， which were attached by wires and tubes to bulky machinery outside the body. The most famous of those， the Jarvic-7， used air as a pumping device and was attached to an apparatus about the size of a washing machine.
"I think it"s potentially a major step forward in the artificial heart development，" said Dr.
David Faxon， president of the American heart Association. However， he said the dream of an implantable， permanent artificial heart is not yet a reality: "This is obviously an experimental device whose long-term success has to be demonstrated." Only about half of the 4，200 Americans on a waiting list for donor hearts received them last year， and most of the rest died.
Some doctors， including Robert Higgins， chairman of cardiology at the Medical College of Virginia in Richmond， said artificial hearts are unlikely to replace donor hears." A donor heart in a good transplant can last 15 to 30 years，" he said. "It"s going to be hard to replace that with a machine."
The Abiocor has a 2-pound pumping unit， and electronic controls that adjust the pumping speed based on the body"s needs. It is powered by a small battery pack worn outside the body that transmits current through the skin.
The first two paragraphs tell that Self-contained artificial heart__________. 查看材料
A.was made of titanium and plastics
B.had brought the patient to the brink of death
C.did not need to get power from outside the body
D.was invented by two surgeons from university of Louisville
根据下列材料，请回答题
First Self-contained Heart Implanted
A patient on the brink of death has received the world"s first self-contained artificial heart a battery-powered device about the size of a softball that runs without the need for wires， tubes or hoses sticking out of the chest.
Two surgeons from the University of Louisville implanted the titanium and plastic pump during a seven-hour operation at Jewish Hospital Monday. The hospital said the patient was" awake and responsive" Tuesday and resting comfortably. It refused to release personal details.
The patient had been expected to die within a month without the operation， and doctors said they expected the artificial heart to extend the person"s life by only a month. But the device is considered a major step toward improving the patient"s quality of life.
The new pump， called A bioCor， is also a technological leap from the mechanical hearts used in the 1980s， which were attached by wires and tubes to bulky machinery outside the body. The most famous of those， the Jarvic-7， used air as a pumping device and was attached to an apparatus about the size of a washing machine.
"I think it"s potentially a major step forward in the artificial heart development，" said Dr.David Faxon， president of the American Heart Association. However， he said the dream of an implantable， permanent artificial heart is not yet a reality，" This is obviously an experimental device whose long-term success has to be demonstrated. " Only about half of the 4，200 Americans on a waiting list for donor hearts received them last year， and most of the rest died.
Some doctors， including Robert Higgins， chairman of cardiology at the Medical College of Virginia in Richmond， said artificial hearts are unlikely to replace donor hearts.
"A donor heart in a good transplant can last 15 to 30 years，" he said. "It"s going to be hard to replace that with a machine. "
The AbilCor has a 2-pound pumping unit， and electronic controls that adjust the pumping speed based on the body"s needs. It is powered by a small battery pack worn outside the body that transmits current through the skin.
The pump of the first implanted self-contained heart was made of titanium and plastic. 查看材料
A.Right
B.Wrong
C.Not mentioned
The Hyper-X
The Hyper-X (超音速飞机) recently broke the record for air-breathing jet planes when it traveled at a Hypersonic speed (超音速) of seven times the speed of sound. That's about 5,000 miles per hour: At this speed, you'd get around the world -flying along the equator (赤道) - in less than 5 hours.
The Hyper-X is an unmanned, experimental aircraft just 12 feet long. It achieves hypersonic speed using a special sort of engine known as a scramjet (超音速冲压式喷气发动机).
For an engine to burn fuel and produce energy, it needs oxygen. A jet engine, like those on passenger airplanes, gets oxygen from the air. A rocket engine typically goes faster but has to carry its own supply of oxygen. A scramjet engine goes as fast as a rocket, but it doesn't have to carry its own oxygen supply.
A scramjet's special design allows it to obtain oxygen from the air that flows through the engine. And it does so without letting the fast-moving air put out the combustion (燃烧) flames. However, a scramjet engine works properly only at speeds greater than five times the speed of sound.
A booster rocket (助推火箭) carried the Hyper-X to an altitude of about 100,000 feet for its test flight. The aircraft's record-beating flight lasted just 11 seconds. That brief journey on March 27 makes a major milestone on the way to a new breed of very fast airplanes, says Werner J. A. Dahm of the University of Michigan in Ann Arbor. In the future, engineers predict, airplanes equipped with scramjet engines could transport cargo quickly and cheaply to the brink (边缘) of space. Such hypersonic jets could carry passengers anywhere in the world in just a few hours.
Out of the three experimental Hyper-X aircrafts built for NASA, only one is now left. The agency has plans for another 11-second hypersonic flight, this time at 10 times the speed of sound.
The Hyper-X broke the record because
A．it was the first air-breathing jet plane.
B．it flew along the equator.
C．it traveled at the speed of sound.
D．it reached a speed of about 5,000 miles per hour.
