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---------2In the passage，the writer tells us that a“man—amplifier”and a“Hardiman” ________ ( ) A.are both driven by hydraulic motorsB.are both controlled by radio signalsC.move as their operators’handsD.make it possible to work without natural hands 参考答案： C 文章中由第二段可知，作者告诉我们“man-amplifier”和“Hardiman”。都可以作为操作者的手壁来运行工作。----------------------------------------3The advantage of a“Hardiman”over a“man．amplifier”mentioned in the passage is________ ． ( ) A.it can be controlled from a distanceB.it can work with more strength and pick up more weightC.it is more powerful and easier to operateD.it is bigger 参考答案： A 由第三段中间处可知，“Hardiman”优于“man．amplifer”的是Hardiman可以像卫星一样远程控制。----------------------------------------4If the operator bends down to pick something up．the hydraulic motors can make it possible for him to lift ________in each hand． ( ) A.450 kilograms B.500 kilogramsC.450 grams D.500 grams 参考答案： A 由第二段最后1句可知，水力驱动机每只手可以提起450公斤重的物品。----------------------------------------5In________device the operator control the movements directly． ( ) A.man—amplifier B.artificial handC.a computer brain D.Hardiman 参考答案： D 由最后一段可知，在Hardiman装置中，操作者可以直接控制该装置的运作。----------------------------------------1Which of the following applies to the management of human resources in American companies? ( ) A.They hire people at the lowest cost regardless of their skills．B.They see the gaining of skills as their employees’own business．C.They attach more importance to workers than equipment．D.They only hire skilled workers because of keen competition． 参考答案： B 由第一段中间处“skill acquisition is
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