单项选择题

In Kraemer's opinion, if some species died out, it would possibly______.

A．affect the existence of other species
B．do good to other species
C．reproduce the species in the future
D．clone the species right now
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单项选择题
The goal of Noah's Ark Project is to _______.
A．make efforts to clone the endangered panda
B．save endangered animals from extinction
C．implant embryo into a host animal
D．collect DNA of endangered animals to study
单项选择题
According to Professor Kraemer, the main problem in cloning pandas would be the lack of______.
A．host animals
B．funds
C．available panda eggs
D．qualified researchers
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