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  3. Predictions of many robots in industry have yet come true. For ten years or more, manufacturers of big robots have explained how

Predictions of many robots in industry have yet come true. For ten years or more, manufacturers of big robots have explained how

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问题       Predictions of many robots in industry have yet come true. For ten years or more, manufacturers of big robots have explained how their machines can make industry more competitive and productive. The maker for  【21】______   robots is over-supplied now, and the driving force of the robotics revolution is  【22】______   to be with makers of machines that handle a few kilos at most.
      "Heavy-robot manufacturers are in some difficulty  【23】______   finding customers. They are offering big  【24】______   just to get in the door. There has been a  【25】______   growth everywhere in the numbers of robots, so we admit we are either deceiving  【26】______   or that the market is slowly growing." said John Reekie, chairman of Colen Robotics. "The following things must happen  【27】______   the robotics revolution to occur. We must achieve widespread robot literacy,  【28】______   there has been a computer  【29】______   program. There must be a robot policy. Finally, some kind of  【30】______   intelligence needs to be  【31】______   ."
      Colen makes educational robots and machine tools. It is small  【32】______   with companies like ASEA or Fujitsu Fanuc. But Galen with others and departments in universities such as Surrey, Manchester, and Durham possess an advantage  【33】______   the giants. The big companies sell very expensive  【34】______   to businesses with expert knowledge in automation. The  【35】______   companies make robots for teaching people, and now they have realized that there is a need for small.  【36】______   robots that they can meet.
       The little companies either bring their educational machines  【37】______   an industrial standard or design from the start. One technique that they all adopt is to choose  【38】______   components where possible. The major cost of making  【39】______   their models is the electronics, which will fall in price. There is  【40】______   scope for reductions in mechanical costs. The sue of standard parts, which are easily replaced, should give these robots a mechanical life of something in the order of five years.  
【23】
选项 A、as
B、with
C、over
D、in
答案D
解析 考查搭配。difficulty后用介词in引出限定内容，指做某事有困难。
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