A. run out of human control

　　B. satisfy human’s real desires

　　C. command armies of killer robots

　　D. work faster than a mathematician

　　68. Machines with specific purposes are associated with living things partly because they might be able to

　　.

　　A. prevent themselves from being destroyed

　　B achieve their original goals independently

　　C. do anything successfully with given orders

　　D. beat humans in international chess matches

　　69. According to some researchers, we can use firewalls to

　　.

　　A. help super intelligent machines work better

　　B. be secure against evil human beings

　　C. keep machines from being harmed

　　D. avoid robots’ affecting the world

　　70. What does the author think of the safety problem of super intelligent machines?

　　A. It will disappear with the development of AI.

　　B. It will get worse with human interference.

　　C. It will be solved but with difficulty.

　　D. It will stay for a decade.

　　第二节 （共 5 小题；每小题 2 分，共 10 分）

　　根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

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