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A．Museum officials rarely allow scholars access to such artifacts.
B．Space that could be better used for display is taken up for storage.
C．Such artifacts are often damaged by variations in temperature and humidity.
D．Such artifacts often remain uncatalogued and thus cannot be located once they are put in storage.
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A．Ancient lamps and pottery vessels are less valuable, although more rare, than royal seal impressions.
B．Artifacts that are very similar to each other present cataloguing difficulties to archaeologists.
C．Artifacts that are not uniquely valuable, and therefore could be sold, are available in large quantities.
D．Cyprus is the most important location for unearthing large quantities of salable artifacts.
A．Prospective purchasers would prefer to buy authenticated artifacts.
B．The price of illegally excavated artifacts would rise.
C．Computers could be used to trace sold artifacts.
D．Money gained from selling authenticated artifacts could be used to investigate and prosecute illegal excavators.
The extent of the disaster in an earthquake depends on many factors. If you carefully build a toy house with an erect set, it will still stand no matter how much you shake the table. But if you build a toy house with a pack of cards, a slight shake of the table will make it fall. An earthquake in Agadir, Morocco, was not strong enough to be recorded on distant instruments, but it completely destroyed the city. Many stronger earthquakes have done comparatively little damage. If a building is well constructed and built on solid ground, it will resist an earthquake. Most deaths in earthquakes have been due to faulty building construction or poor building sites. A third and very serious factor is panic. When people rush out into narrow streets, more deaths will result.
The United Nations has played an important part in reducing the damage done by earthquakes. It has sent a team of experts to all countries known to be affected by earthquakes. Working with local geologists and engineers, the experts have studied the nature of the ground and the type of most practical building code for the local area. If followed, these suggestions will make disastrous earthquakes almost a thing of the past.
There is one type of earthquake disaster that little can be done about. This is the disaster caused by seismic sea waves, or tsunamis. (These are often called tidal waves, but the name is incorrect. They have nothing to do with tides. ) In certain areas, earthquakes take place beneath the sea. These submarine earthquakes sometimes give rise to seismic sea waves. The waves are not noticeable out at sea because of their long wave length. But when they roll into harbors, they pile up into walls of water 6 to 60 feet high. The Japanese call them "tsunamis", meaning "harbor waves", because they reach a sizable height only in harbors.
Tsunamis travel fairly slowly, at speeds up to 500 miles an hour. An adequate warning system is in use to warn all shores likely to be reached by the waves. But this only enables people to leave the threatened shores for higher ground. There is no way to stop the oncoming wave.
Which of the following CANNOT be concluded from the passage？
A．The number of earthquakes is closely related to depth.
B．Roughly the same number of earthquakes occur each year.
C．Earthquakes are impossible at depths over 460 miles.
D．Earthquakes are most likely to occur near the surfaces.
A．faulty building construction
B．an earthquake's strength
C．widespread panic in earthquakes
D．ineffective instruments
A．construct strong buildings
B．put forward proposals
C．detect disastrous earthquakes
D．monitor earthquakes
The United States, it was believed, had no status quo ante. Our only "station" was the turning of a stationary wheel, spinning faster and faster. We did not base our system on property but opportunity—which meant we based it not on stability but on mobility. The more things changed, that is, the more rapidly the wheel turned, the steadier we would be. The conventional picture of class politics is composed of the Haves, who want a stability to keep what they have, and the Have-Nots, who want a touch of instability and change in which to scramble for the things they have not. But Americans imagined a condition in which speculators, self-makers, runners are always using the new opportunities given by our land. These economic leaders (front-runners) would thus be mainly agents of change. The nonstarters were considered the ones who wanted stability, a strong referee to give them some position in the race, a regulative hand to calm manic speculation; an authority that can call things to a halt, begin things again from compensatorily staggered "starting lines."
"Reform" in America has been sterile because it can imagine no change except through the extension of this metaphor of a race, wider inclusion of competitors, "a piece of the action," as it were, for the disenfranchised. There is no attempt to call off the race. Since our only stability is change, America seems not to honor the quiet work that achieves social interdependence and stability. There is, in our legends, no heroism of the office clerk, no stable industrial work force of the people who actually make the system work. There is no pride in being an employee (Wilson asked for a return to the time when everyone was an employer). There has been no boasting about our social workers--they are merely signs of the system's failure, of opportunity denied or not taken, of things to be eliminated. We have no pride in our growing interdependence, in the fact that our system can serve others, that we are able to help those in need; empty boasts from the past make us ashamed of our present achievements, make us try to forget or deny them, move away from them. There is no honor but in the Wonderland race we must all run, all trying to win, none winning in the end (for there is no end).
Which of the following best expresses the author's main point？
A．The absence of a status quo ante has undermined United States economic structure.
B．The free enterprise system has been only a useless concept in the United States.
C．The myth of the American free enterprise system is seriously flawed.
D．Fascination with the ideal of "openness" has made Americans a progressive people.
B．They're going to dismiss some of their employees.
C．They'll be moved to other places.
D．They have no money to build chemical treatment plants.
B．Because over-fishing was prohibited.
C．Because the local Chamber of Commerce tried preserve fishes.
D．Because the local fishing cooperative decided to reduce its catch.
M: Oh. Hi, Laura. What're you doing here？
W: Uh... I'm usually here on weekends. It's my dad's shop. So... you're looking for a bike？
M: Yeah. Now that the weather's warming up, I thought I'd get some exercise--instead of taking the bus all the time.
W: Well, you came to the right place. Do you know what you'd like？
M: Well, I don't want a racer or a touring bike or anything. Mostly I'll just be using it to get me back and forth from work.
W: How far is that？
M: About four miles.
W: Are there a lot of hills on the way？
M: Some, I guess. But... uh... maybe I should just tell you up front that I've only got a hundred and fifty dollars. Can I get anything decent for that？
W: Well, you're not going to get anything top-of-the-line--but we do have a few trade-ins in the back that are in good condition.
M: That sounds good.
W: And you're right, for the kind of riding you're going to be doing, the most important thing is comfort. You want to make sure it's the right height for you. Follow me and I'll show you what we've got.
Q. 27. Why is Laura at the bicycle shop？
Q. 28.Why does John want to buy a bicycle？
Q. 29.What does Laura suggest that John do？
Q. 30.What does Laura say is most important about a bike？
(47)
A．She's waiting for her father.
B．She's having her bicycle repaired.
C．She wanted to surprise John.
D．She works there.
B．It must have several gears.
C．It must have good tires.
D．It must be the right weight.
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