单项选择题

According to the author, IPCC pictures put forward by Houghton shows ______.

A．effects of global warming
B．causes of global warming
C．examples of human damage to the environment
D．instances of natural disasters threatening human existence
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单项选择题
According to the passgae, the sentence But if the earth…for optimum comfort (in the 3rd paragraph) means
A．there is an unseen hand controlling the earth' s movement
B．there is an operating manual warning people against air-conditioning in the factory
C．people should prepare operating manuals to tell workers how to get greater comfort
D．people have been enjoying the most comfortable climate in Earth' s history.
单项选择题
Which of the following is NOT TRUE about the collection of information in police interviews
A．It requires genuine police skills.
B．It can be justified.
C．It is crucial for the solving of a crime.
D．It over-estimates the police role but ignores the informant Y s role.
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