单项选择题

A．Insomnia.
B．Anemic.
C．High blood pressure.
D．Appetite.
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For this part, you are allowed 30 minutes to write a short essay entitled Technology, a Blessing or a Curse You should write at least 150 words following the outline given below:1．科学技术使人们的生活变得更加便利2．科学技术造成的负面影响3．我们应该怎样面对这种矛盾
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Which fact runs counter to the theory that carbon dioxide warms the earth
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