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Sending a robot into space to gather information is certainly a viable option, Line but should be regarded only as that--an opt
Sending a robot into space to gather information is certainly a viable option, Line but should be regarded only as that--an opt
admin
2012-01-15
122
问题
Sending a robot into space to gather information is certainly a viable option,
Line but should be regarded only as that--an option. Even the most technologically
advanced robots cannot and should not replace manned missions to outer space.
Certainly it is cheaper and less dangerous to launch a computer probe
(5) that can gather reams of data, but often the information obtained by a machine
serves only to produce more questions than it answers. Therefore, the space
program should allow manned missions to follow up on those initial information-
gathering robotic ventures.
While manned missions are more costly than are unmanned missions, they
(10) are also more successful. Robots and astronauts use much of the same equipment
in space, but a human is much more capable of calibrating those instruments
correctly and placing them in appropriate and useful positions. A computer is
often neither as sensitive nor as accurate as a human in managing the same terrain
or environmental circumstances. Robots are also not as equipped as humans to
(15) solve problems as they arise, and robots often collect data that is not helpful or
even desired. A human, on the other hand, can make instant decisions about what
to explore further and what to ignore.
While technological advances have allowed us to make incredible strides
in space exploration, they still cannot match the power of the human brain. This
(20) "supercomputer" is necessary in order to maintain a space program that can truly
advance to the next level.
The passage supplies information to answer which of the following questions?
选项
A、What is the cost of launching a computer probe into space?
B、What type of information can safely be ignored when exploring outer space?
C、How much information can a computer probe gather in outer space?
D、What is the next level in space exploration?
E、Are unmanned space missions more economical than manned space missions?
答案
E
解析
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本试题收录于:
GRE VERBAL题库GRE分类
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