单词：labour saving ratio
单词：labour saving ratio 相关文章
Controling Cancer There are two main causes of cancer: heredity and environment. We can do nothing to change our heredity, that is, the basic physical characteristics that are passed on to us by our parents. However, we can do a great deal to control
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C: my mp3 player is broken, so I want to change it for an mp4 player. Can you offer any advice about which brand and model to buy? J: an mp4 player? why don't you buy a new cell phone? You can find an mp4 player inside any of the latest cell phones.
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Section 2: When I got out of my car, the air was pulsing. The whole place was absolutely silent, but the silence wasn't an absence of noise. It was really a presence of a kind of energy or quickening. And at my feet was the great, still blue plate of
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Telephones are a major part of our lives these days. When I was growing up, I perhaps used the phone once a week. It was almost a big event when it rang. Everyone rushed into the living room to find out who was calling. Of course, it was an old-style
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One of the first lessons new drivers learn is to keep their eyes on the road. 新手上路的第一课，目视前方。 Unfortunately, cell phones and other electronic devices are causing many drivers to lose their focus and sometimes their lives. 然
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