单项选择题


A．identification
B．entertainment
C．occupation
D．accommodation
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单项选择题
According to the passage, why has human intelligence not been copied in the making of a robot
A．Computers can only do mathematical problems better than human beings.
B．Technology is not advanced enough to copy how human minds work.
C．Scientists are satisfied to have the robot with senses of sight and touch.
D．Robots with human intelligence will be dangerous to human beings.
单项选择题
The author mentions that the maximum THR for older adult participants in sports should be less than______beats per minute.
A．60
B．120
C．180
D．240
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