The author believes that social conflicts______.
A. tend to aggravate our working environment
B. derive from the disagreement among leaders
C. make matters much worse without any doubt
D. can be peacefully resolved though inevitable
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By saying "Social conflicts know no bounds. ". the author means that______.
A. there is conflict between different races
B. social conflict is nothing but class struggle
C. nobody living in society can avoid conflict
D. conflict is an inherent part of any institution
Which of the following is an economical measure for energy conservation？
A. Investing in new forms of facilities.
B. Making more efficient refrigerators.
C. Requiring white roofs for buildings.
D. Toughening fuel economy standards.
The author suggests that demography______.
A. is a critical factor to be considered in coping with the crisis
B. clarifies and explains global economic crisis in more depth
C. provides a solution for us to get out of crisis in the long run
D. inevitably leads to financial sector bubbles on a global scale
Which of the following best supports the assumption that animals have emotions？
A. What happens in their heads and hearts.
B. How they interact with friends and foes.
C. The odors they emit when heing with friends.
D. The expression in their eyes while interacting with others.
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