问题
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He is not willing to ____ the risk of losing his money.A.omitB.attachC.affordD.run
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Because of the rising cost of fuel, scientists are building automobile engines who will co
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Britains emissions of greenhouse gases, blamed by many scientists for contributing to glob
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Though Einstein was a great scientist, many of his ideas______today and are being modified
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Who will have the least risk of having iron loss?
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Many scientists are in the hopes that new ways of