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全真呈现历年考试试题
1、[单选题]Pistons for modern engines are made of _______.
2、[主观题]【英译中】The heavy stresses imposed upon the shaft during operation require its construction to be very stiff and tough.The material used for its manufacture is a special alloy steel,which is either cast or forged into shape.
3、[主观题]【英译中】The rear end of the crankshaft usually contains a flange with a number of drilled and tapped holes.The flywheel is securely fastened to it.
4、[主观题]【英译中】The complete cycle of an engine requires four piston strokes:intake,compression,power and exhaust.
5、[阅读理解]【单词填空题】The company is taking a new measure to ______ their export trade.
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