1、It can be concluded from the passage that ______.(单选题)
A. it is hopeful to bring solar energy into average households
B. it is feasible to use nuclear energy to run home appliances
C. it is economical to use water to heat houses
D. it is possible to use wind to power machines
试题答案:A
2、Two main processes that determine oil prices are ______.
A. media accounts and oil markets
B. economic fundamentals and irrational fears or the actions of shadowy governments
C. consumers’ fears and suppliers’ political decisions
D. the forces of supply and demand and constraints on those forces created by political risk and cartel behavior
试题答案:D
3、Which one listed below is most dangerous to elephants?(单选题)
A. A disgruntled farmer with a rifle.
B. Poachers.
C. Mice.
D. Bees.
试题答案:B
4、What will happen with the freshening of waters?(单选题)
A. Sea-ice formation will reduce,
B. Antarctic ice shelves will melt.
C. Rainfall will increase,
D. The circulation of deep waters will reduce.
试题答案:D
5、What has happened to housing prices recently?(单选题)
A. They have been rising quickly.
B. They have been falling quickly.
C. They have stopped rising quickly.
D. They have stopped falling quickly.
试题答案:A
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