[单选题] The shortcomings of the petrol engine in the nineteenth century include the followings except ______.

1、[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.

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2、[主观题]【英译中】The diesel engines are compression ignition engines.The diesel engine uses the heat of compression to ignite the fuel.

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3、[主观题]【英译中】One of the difference between the diesel engine and the petrol engine is the compression ratio of the diesel engine is very high.

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4、[主观题]【英译中】When the piston move to its highest position inside the cylinder,we can say it is at Top Dead Center(TDC).

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5、[主观题]【英译中】Diesel’s work turned out to be so successful by the first decade of the twentieth century that the engine was named after his name,the diesel engine.

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