单选题
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.
单选题
The passage supplies information to answer which of the following questions?
【正确答案】
E
【答案解析】The passage states that "Certainly it is cheaper and less dangerous to launch a computer probe ..., " which answers the question posed in answer choice E. There is not enough information in the passage to answer any of the other questions.
单选题
According to the passage, all of the following are advantages of humans over robots EXCEPT:
【正确答案】
C
【答案解析】There is nothing in the passage to suggest that humans can stay in outer space for longer periods of time than can robots. All of the other answer choices are mentioned specifically in the passage as advantages that humans have over robots.