What is the basis for the American notion of national good？
A. Individual freedom.
B. Personal property.
C. National cooperation.
D. Both A and B.
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Which power does the man suggest？
A. Water power.
B. Wind power.
C. Solar power.
D. Electronical power.
Back in his own country, Mr. Wang studied C-language and chemistry.
A. Right
B. Wrong
What problem does the man think can be solved if the government put up small units to build solar panels？
A. The heat supply.
B. The electric supply.
C. The water supply.
D. The unemployment situation.
以德治国的首要原则是（）
A. 坚持为人民服务的宗旨
B. 坚持共产主义的理想信念
C. 坚持集体主义原则
D. 社会主义道德建设围绕、服从和服务于社会主义现代化建设这一中心任务
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