According to the passage, what do student researchers often learn when they discuss their work in class
A. Other students rarely have objective comments about it.
B. Other students do not believe the researchers did the work themselves.
C. Some students feel that the conclusions are too obvious.
D. Some students do not understand the meaning of the researchers’ questions.
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In a true sense, plateways are the earliest and most primitive railways invented by ______.
A. industrial workers
B. George Stephenson
C. the miners
D. the miner’s work
A serious outcome brought out by the shortage of resources is that ______.
A. many public institutions have to cut down enrollments of students
B. teachers are not qualified enough for satisfactory performance in classes
C. some institutions have to reduce the expenses on research
D. there is keen competition for resources and attention of faculty between public and private institutions
According to the passage, one of the causes fur the difficulties of American higher education is that ______.
A. the government has stopped giving public institutions as much financial support as it used to
B. America has always been encouraging young people to go to college
C. many public institutions have replaced private ones
D. the government only finances such researches as that of placing man on the moon
Where there is no product yet meeting a need, the opportunities are unlimited.
A. 在迄今还没有产品来满足需求的领域，其机遇是很多的。
B. 哪个地方没有产品与需求搭配时，哪个地方机会是没有被限定的。
C. 当产品没有满足需求时，机会是不被限定的。
D. 在没有产品与一个需求搭配时，机遇是无限的。
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