题目内容
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According to the Mars Theory, why does the moon contain little iron？
A．The Moon formed from pieces of Earth's crust.
B．The Moon was struck by another planet.
C．The Moon's composition resembles that of Mars.
D．The Moon's mineral content has changed over time.
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Reading comprehension Choose the best answers according to the following passage. (11-15) The competition among producers of personal computers is essentially a race to get the best and most innovative products to the marketplace. Apple Computer, Inc. has introduced two new, faster personal computers, the Macintosh II and Macintosh SE, before the introduction of a new PC by HP, one of Apple’s major competitors. Apple’s new computer, the improved Macintosh, is able to run programs that previously were impossible to run on an Apple PC, including IBM-compatible(兼容的) program. This compatibility feature makes Apple computers capable of running IBM programs and thus more popular in the office, where Apple hopes to increase sales. The new computers represent a big improvement over past models, but they also cost much more. Company officials do not think the higher price will slow down buyers who want a more powerful computer. Apple wants to stay in the high-price end of the personal computer market to finance research even faster, more sophisticated computers. Even though Apple and HP are major competitors, both companies realize that their competitor’s computers have certain features that their own models do not. The Apple line has always been popular for its beautiful color graphics, whereas the HP machines have always been favored in offices. In the future, there will probably be more compatibility between the two companies’ products, which no doubt will that both Apple and HP change marketing strategies. 11. According to paragraph 1, Apple computer, Inc. has introduced two new, faster personal computers because _______.
A、HP is often changing its computer models
B、it wants to produce its machines for specific users
C、it wants to stay ahead of HP in the computer market
D、it expects HP to follow its models
A、be your own boss
B、develop managerial skills
C、achieve financial security
D、manage team-oriented projects
A．Those who live near a factory.
B．Those who live near a bus station.
C．Those who live in Birmingham.
D．Those who live in the UK.
A．The kidney
B．The nose
C．The earrings
D．The lung
A．Redecorate their homes
B．Read books for them
C．Prepare food for them
D．Doing exercises with them.
A．It is very easy to understand how memory works.
B．Memory has a very limited capacity to store information.
C．Information stored in the human brain is never lost.
D．Very old people seldom remember their childhood.
The UN's new coordinator for avian and human influenza said he was almost certain there could be another major outbreak of influenza soon. He said the likelihood that the virus which has caused bird flu in Asia could mutate and jump to humans was high. Dr. Nabarro stressed he will be working hard to control bird flu through contact with farming communities and markets where birds are sold, and looking at the migration of wild birds. Dr. Nabarro said the number of deaths from any future influenza pandemic would depend on where it started, how quickly it was discovered, and the kind of response they got from governments.
According to the news, whether the bird flu will cause a great casualty depends on______.
A．the season
B．the weather
C．the type and location of an outbreak
D．the kind of birds
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