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[雅思高頻場(chǎng)景聽寫訓(xùn)練] 雅思真題聽力場(chǎng)景精練 第73期:科技類講座 物理與工業(yè)(4)
Well, it was very enjoyable and just to give you an idea of what they produce, I've brought along three hats to show you.2013-08-08 編輯：emma
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[雅思高頻場(chǎng)景聽寫訓(xùn)練] 雅思真題聽力場(chǎng)景精練 第72期:科技類講座 物理與工業(yè)(3)
Salt is a mineral. Salt enhances the flavor of food, preserves food, helps to regulate and control normal body functions, and acts as a building block for more complex chemicals.2013-08-07 編輯：emma
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[雅思高頻場(chǎng)景聽寫訓(xùn)練] 雅思真題聽力場(chǎng)景精練 第71期:科技類講座 物理與工業(yè)(2)
Newton’s First Law of Motion states that in order for the motion of an object to change, a force must act upon it, a concept generally called inertia.2013-08-06 編輯：emma
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[雅思高頻場(chǎng)景聽寫訓(xùn)練] 雅思真題聽力場(chǎng)景精練 第70期:科技類講座 物理與工業(yè)(1)
Now, the idea of a “black hole” — an object with so much gravity that it won’t let light escape——was first proposed more than two hundred years ago, in 1795, by a French mathematician, Pierre LaPlace.2013-08-05 編輯：emma
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[雅思高頻場(chǎng)景聽寫訓(xùn)練] 雅思真題聽力場(chǎng)景精練 第69期:科技類講座 生物與化學(xué)(6)
The main reason why MSG is more commonly used in Japanese meals is tradition. For many thousands of years the Japanese have incorporated a type of seaweed known as kombu in their cooking, as they di..2013-08-03 編輯：emma
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[雅思高頻場(chǎng)景聽寫訓(xùn)練] 雅思真題聽力場(chǎng)景精練 第68期:科技類講座 生物與化學(xué)(5)
In Australia, where people spend a lot of time at the beach, the governmnet has realized that it must prevent sharks from swimming near its beaches.2013-08-02 編輯：emma
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[雅思高頻場(chǎng)景聽寫訓(xùn)練] 雅思真題聽力場(chǎng)景精練 第67期:科技類講座 生物與化學(xué)(4)
In 1859 the English naturalist Charles Darwin published The Origin of Species. The book contained two major arguments: First, Darwin presented a wealth of evidence of evolution.2013-08-01 編輯：emma
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[雅思高頻場(chǎng)景聽寫訓(xùn)練] 雅思真題聽力場(chǎng)景精練 第66期:科技類講座 生物與化學(xué)(3)
Chemistry is the branch of natural science that studies matter and its composition. How matter reacts, howorganic materials interact and how elements interact are all aspects of chemistry.2013-07-31 編輯：emma
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[雅思高頻場(chǎng)景聽寫訓(xùn)練] 雅思真題聽力場(chǎng)景精練 第65期:科技類講座 生物與化學(xué)(2)
Another kind of seasonal migration is altitudinal migration, which is where animals move vertically rather than to a different region of the earth.2013-07-30 編輯：emma
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