单项选择题

It can be learned from the passage that oil exploitation beneath ANWR' s frozen earth ______.

A．involves a lot of technological problems
B．remains a controversial issue
C．is expected to get under way soon
D．will enable the U.S. to be oil independent
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单项选择题
Which of the following statements best expresses the author' s view
A．The words people use can influence their behavior.
B．Unpleasant words in sports are often used by foreign athletes.
C．Aggressive behavior in sports can have serious consequences.
D．Unfair judgments by referees will lead to violence on the sports field.
单项选择题
Harsh words are spoken during games because the players ______.
A．are too eager to win
B．treat their rivals as enemies
C．are usually short- tempered and easily offended
D．cannot afford to be polite in fierce competitions
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