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

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

flows

B

comes

C

derives

D

originates


参考解析

解析:
句意:还不清楚日益增多的报道是否来自更大的人类活动还是仅仅是更多调查的结果。be stemmed from“起源于,由……造成”与originate from/in同义,均强调某物是另一物的起因。flow流动,流畅。come (from)来自于……。derive (from)源出,起源。

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