[单项选择]If the voltage remains constant, the more the resistance, the less the current.


A. 如果电压稳定，电阻变大，电流变小。
B. 如果电压不变，电阻和电流成反比。
C. 电阻和电流的大小之比取决于电压的大小。
D. 电压越高，电阻就越大，电流就越小。

[单项选择]The weather is a constant subject of conversation in Britain（　）.
A. question
B. problem
C. title
D. topic

[单项选择]Her overall language proficiency remains that of a toddler .
A. disabled
B. baby
C. pupil
D. teenager

[填空题]English remains a dominant and universal language, which presently (51) as a connection-link between great varieties of different nations. Now English is spoken mainly in every corner of the world. It is very convenient in (52) of facilitating contacts between people from different countries.
The British council put the figure of 750 million English language speakers. The only (53) that the percentage of papers published in English has gone from 65% to 85% in the last 25 years is self-explanatory and only (54) the prevalence of English in all spheres of life. The importance of English skills has been exaggerated to the (55) that it overweighs practically everything in assessing person’s competency.
(56) of controversial information that English dominance will be replaced by Chinese, Arabic or Hindi languages by 2050, which was introduced by a linguist and methodologist David Graddol, a quantity of English language learners is increa

[单项选择]According to the passage, plagiarism remains a growing problem largely because________.


A. the plagiarism-detection tools are not powerful enough
B. the violators are smarter than the service providers
C. the violators believe they can run away with their behavior
D. the educators and businesses are too tolerant

[单项选择]

Fossils are the remains and traces of ancient plant and animal lives that are more than 10,000 years old. They range in size from microscopic structures to dinosaur skeletons and complete bodies of enormous animals. Skeletons of extinct species of human are also considered fossils.
An environment favorable to the growth and later preservation of organisms is required for the occurrence of fossils. Two conditions are almost always present: The possession of hard parts, either internal or external, such as bones, teeth, scales, shells, and wood; these parts remain after the rest of the organism has decayed. Organisms that lack hard parts, such as worms and jelly fish have left a meager geologic record. Quick burial of the dead organism, so that protection is afforded against weathering, bacterial action, and scavengers.
Nature provides many situations in which the remains of animals and plants are protected against destruction. Of these, marine sediment is by far th
A. quick burial.
B. cold storage.
C. quick temperature change.
D. lack of water

[单项选择]

There is nothing in this world constant but inconstancy.--SWIFT Project after project designs a set of algorithms and then plunges into construction of customer-deliverable software on a schedule that demands delivery of the first thing built. In most projects, the first system built is (1) usable. It may be too slow, too big,awkward to use, or all three. There is no (2)   but to start again, smarting but smarter, and build a redesigned version in which these problems are solved. The discard and  (3) maybe done in one lump, or it may be done piece-by-piece. But all large-system experience shows that it will be done. Where a new system concept or new technology is used, one has to build a system to throw away, for even the best planning is not so omniscient（全知的）as to get it right the first time. The management question, therefore, is not whether to build a pilot system and throw it away. You will do that. The only question is whether to plan in advance to build
A. alternative
B. need
C. possibility
D. solution