理工类题库
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Richard Seed claimed to be able to clone___________
2007-12-11
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Paragraph 4___________
2007-12-11
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Paragraph 1____________
2007-12-11
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Paragraph 1____________
2007-12-11
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Paragraph 3___________
2007-12-11
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Paragraph 2___________
2007-12-11
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Cloning（克隆）：Future Perfect?1 A clone is all exact copy of a plant or animal pr
2007-12-11
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The Weight Experiment
Nicola Walters has been taking part in experiments in Scotland
2007-12-11
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Sounds can be called a language only when they&nbs
2007-12-11
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Some scientists believe that dolphins have a language&n
2007-12-11
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Dolphins travel faster in water than any other ani
2007-12-11
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Dolphins are the most useful animals to humans.
2007-12-11
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Parts of the dolphin’s brain are particularly well
2007-12-11
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The dolphin leapt up into the air because Sagan&nb
2007-12-11
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回答题：
A Dolphin and an Astronomer One day in 1963, a dolphin named Elvar and a famous astro
2007-12-11
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The word“smog”first appeared in 1952．
2007-12-11
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The forest animals haven’t been affected by the smog．
2007-12-11
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Many Indonesians blamed the government for the drought．
2007-12-11
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Water was used to try to break up the smog．
2007-12-11
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理工类
The air•pollution index went up t0 300 within a few days．
2007-12-11
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