四级练习2011.12.29 四级, difficult, industry, familiar

Rebecca949

As the car industry develops,traffic accidents have become as familiar as the common cold.Yet, their cause and control remain a serious problem that is difficult to solve.(1)_______________________.At the very least,it is a problem that involves three factors: the driver,the vehicle,and the roadway.If all drivers exercised good judgement at all times,there would be few accidents.But this is rather like saying that if all people were honest,there would be no crime.Improved design has helped make highways much safer.(2)_______________________. Attention is now turning increasingly to the third factor of the accident,the car itself.Since people assume that the accidents are bound to occur, they want to know how cars can be built better to protect the drivers.

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焉逢

1.experts have long recognised,that ? problem has mutable causes
2.

战马和蝈蝈

确实值得好好看看，顶先