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单项选择题

A．For hunting.
B．For protecting himself.
C．For stimulation.
D．For protecting the country.
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单项选择题A．It’s near Mexico City.B．It’s in Guatemala.C．It’s stretched from the plains of central Mexico to the mountains of Guatemala.D．It’s in America.

A．It’s near Mexico City.
B．It’s in Guatemala.
C．It’s stretched from the plains of central Mexico to the mountains of Guatemala.
D．It’s in America.

单项选择题A．Same height.B．Same friends.C．Same number of children.D．Same university.

A．Same height.
B．Same friends.
C．Same number of children.
D．Same university.

单项选择题A．Commenting on a picture.B．Looking at some paintC．Painting a picture.D．Comparing two paintings.

A．Commenting on a picture.
B．Looking at some paint
C．Painting a picture.
D．Comparing two paintings.

单项选择题Which of the following conclusions is best supported by the second paragraph

A．Robot does not last long.
B．The early men made toys themselves.
C．Man has always had a desire to make a copy of himself.
D．The materials for making a copy of man are limited.

单项选择题In order to enable the intelligent robot to deal with an unexpected situation, the computers in it must do the following things except ______ .

A．having a large amount of information
B．making choices about how to act
C．studying the situation carefully
D．finding the information quickly

单项选择题From the third paragraph, we can know that ______ .

A．there has not been a true humanlike robot yet
B．computers in the robots are expensive
C．robots may do what they are told
D．robots have been designed to work independently

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According to the passage, however intelligent a robot may be, it ______ .

A．acts as an ordinary animal
B．is nothing but a machine
C．is viewed as a modern myth
D．is regarded as a human being

单项选择题According to the author, ______ .

A．older adults need more physical exercises than the younger ones
B．younger adults are not necessary to take a physical examination before a fitness program
C．fitness programs for older adults should be well - monitored
D．poorly-designed fitness programs for older adults will do serious harms to them

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