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How far water drops to the turbines in a power station is known as ______ .A．the headsB．th
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The most common cause of lowering the crankcase lube oil flash point is _____.A.more water
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A centrifugal fuel oil purifier should be shut down if ________.A.more sealing water is ne
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Furniture made of pure wood is certainly more expensive than______made of other materials.
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Natural gas is used in Bremo to heat water because______.A．it produces more steamB．it caus
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More quickly than anyone could have imagined, East Germany is being ____________ in th
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They say that blood is _____ water.A.more thick thanB.thicker thanC.more thick asD.thic
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