I can't give my son the leading position.______，he is too young；secondly，I want Mr.Smith to have the job.
A．After all B．For example C．In the end D．To begin with
阅读快车系列答案科目：高中英语 来源： 题型：阅读理解
Jaime, Bradley, Carrie, Josh和Alan每人根据自己的职业作答了一份关于Robot的调查问卷，第71至75题是他们的职业介绍。阅读下面七项信息（A、B、C、D、E、F和G），选出与他们职业匹配的最佳选项，并标在答题纸的相应位置上, 选项中有两项是多余选项。
71. _______ Carrie is a young man who has a job in a city construction company. He is afraid of climbing up ladders and carrying the iron bars and concrete onto higher places.
72. _______ Jaime is a professor in the field of biochemistry. He is worried about his health situation as he keeps so close to harmful elements year in and year out.
73. _______ Bradley works in the International Ocean Security Association. He is sad to think of the fact that there were so many people who couldn’t be saved at last in disasters.
74. _______ Alan is a worker in an auto factory. He is thinking of changing another job which is more interesting and creative.
75. _______ Josh is an administrator of the National Spaceflight Bureau, which is short of qualified pilots at the moment.
A
I suppose robots could be used as dust people during night time, as they don’t need to sleep and they are comparatively safe in polluted environment.
B
I suppose small remote control robots could be used as sea rescuing workers to search through wreckage（打捞）in a disaster looking for people in the sea. Bomb defusers（扫雷管）are now robots reducing the risk of losing a life.
C
I suppose robots could be used to do jobs that are dangerous, as they can lift heavy objects, paint, handle chemicals, and perform the same job hour after hour, day after day without stop.
D
I suppose robots could be used as chemical researchers. At least they can help us carry harmful chemicals in a chemical plant or help to go into small areas inaccessible to us. It can be used to examine the inside of a nuclear reactor（核反应堆）.
E
I suppose robots could be astronauts and they could travel very far away, like Pluto. If they can, we don’t need to especially train human beings to be astronauts as it costs quite a lot and it also takes many years to make a professional astronaut.
F
I suppose robots could be used as car assembly（装配）workers, in parts of a car building line. Assembly lines make the process move faster, get more work done and cost less. But the job is so mechanical and boring.
G
I suppose robots can do such dangerous jobs as sky-scraper builders that would be safer for human beings. If injured or broken, they can be fixed easily. They can also work in unfavorable conditions such as dark, extreme heat, extreme cold etc.
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