A large population may mean _________.(本题1.0分) A、 higher productivity, but a lower average income B、 lower productivity and a lower average income C、 higher productivity and a higher average income D、 lower productivity, but a higher average income

A large population may mean _________.(本题1.0分)
A、 higher productivity, but a lower average income
B、 lower productivity and a lower average income
C、 higher productivity and a higher average income
D、 lower productivity, but a higher average income

出自：西安石油大学大学英语二

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