问题
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_____ the compression ratio, _____ the proportion of the heat energy of the combustion tur
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Brarll‘s constitution.__________ the military use of nuclear energy.A.withdrawsB.
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The _______ techniques are used in some of Eugene O’Neil’s plays to highlight the thea
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Compared to alternative energy, one of the disadvantages of fossil fuels is ______.A.Minin
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In the _____ pressure charging system the pulse of energy that occur as the exhaust is rel
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To their credit the Department of Energy ______ t
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