2. 考研
  3. It is not clear whether the increase in reports is stemmed from greater human activity or is simply the result of more surveys.

It is not clear whether the increase in reports is stemmed from greater human activity or is simply the result of more surveys.

admin2010-01-13  97
问题 It is not clear whether the increase in reports is stemmed from greater human activity or is simply the result of more surveys.
选项 A、flows
B、comes
C、derives
D、originates
答案D
解析 flow流淌；come来；obtain获得；originate源于。因为stem原意是指“茎”，stem from意为“根源于”，故选D项。
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