我国社会主义改造完成以后，毛泽东以中国的实践经验为基础，运用马克思主义基本原理，全面阐述了社会主义社会的矛盾问题，并形成了比较系统的理论。他指出，推动社会主义社会不断前进的根本动力是 ( )
A. 非对抗性的人民内部矛盾
B. 对抗性的敌我矛盾
C. 社会主义社会的基本矛盾
D. 资产阶级和无产阶级的矛盾
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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.
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
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