单项选择题

How do we explain this variation, and how do we explain the __________ of this adaptation from one generation to another

A．transmission
B．transfer
C．transformation
D．transportation
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单项选择题
There is no __________ that this will be a serious blow to the government.
A．denying
B．declining
C．ignoring
D．rejecting
单项选择题
__________ care in hospitals should be given to those who are seriously ill.
A．Extensive
B．Extreme
C．Generous
D．Intensive
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