Issue :

　　103"The study of history has value only to the extent that it is relevant to our daily lives."

　　另外一道没记住

　　argument:

　　45 The following appeared as an editorial in a wildlife journal.

　　"Arctic deer live on islands in Canada&aposs arctic region. They search for food by moving over ice from island to island during the course of a year. Their habitat is limited to areas warm enough to sustain the plants on which they feed, and cold enough, at least some of the year, for the ice to cover the sea separating the islands, allowing the deer to travel over it. Unfortunately, according to reports from local hunters, the deer populations are declining. Since these reports coincide with recent global warming trends that have caused the sea ice to melt, we can conclude that the decline in arctic deer populations is the result of deer being unable to follow their age-old migration patterns across the frozen sea."

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