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A．He is in the office.
B．He is out.
C．He is at the theatr
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单项选择题
The word carbon (Line 5, Par
A．2) Stands for ______.A. intelligent robotsB. a chemical elementC. an organic substanceD. human beings
单项选择题
What does the writer think about machines with human-like ability
A．He believes they will be useful to human beings.
B．He believes that they will control us in the future.
C．He not quite sure in what way they may influence us.
D．He doesn't consider the construction of such machines possibl
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