酷兔英语

『经典背诵短文【32】Botany』

Botany Botany, the study of plants, occupies a peculiar position in the history of human knowledge...

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『经典背诵短文【31】British Columbia』

British Columbia British Columbia is the third largest Canadian provinces, both in area and popula...

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『经典背诵短文【34】Raising Oysters』

Raising Oysters In the oysters were raised in much the same way as dirt farmers raised tomatoes- b...

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『经典背诵短文【35】Oil Refining』

Oil Refining An important new industry, oil refining, grew after the Civil war. Crude oil, or petr...

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『经典背诵短文【33】Plankton』

Plankton Scattered through the seas of the world are billions of tons of small plants and animals ...

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『经典背诵短文【39】The Salinity of Ocean Waters』

The Salinity of Ocean Waters If the salinity of ocean waters is analyzed, it is found to vary only...

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『经典背诵短文【38】Topaz』

Topaz Topaz is a hard, transparent mineral. It is a compound of aluminum, silica, and fluorine. Ge...

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『经典背诵短文【37】Icebergs』

Icebergs Icebergs are among nature’s most spectacular creations, and yet most people have never se...

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『经典背诵短文【36】Plate Tectonics and Sea-floor Spreading』

Plate Tectonics and Sea-floor Spreading The theory of plate tectonics describes the motions of the...

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『经典背诵短文【40】Cohesion-tension Theory』

Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. B...

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『经典背诵短文【42】Coal-fired power plants』

Coal-fired power plants The invention of the incandescent light bulb by Thomas A. Edison in 1879 c...

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『经典背诵短文【41】American black bears』

American black bears American black bears appear in a variety of colors despite their name. In the...

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『经典背诵短文【45】The source of Energy』

The source of Energy A summary of the physical and chemical nature of life must begin, not on the ...

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『经典背诵短文【43】Statistics』

Statistics There were two widely divergent influences on the early development of statistical meth...

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『经典背诵短文【44】Obtaining Fresh water from icebergs』

Obtaining Fresh water from icebergs The concept of obtaining fresh water from icebergs that are to...

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