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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单项选择题
From the passage we can infer that _______.
A．Kraemer will work with Chinese scientists in clone researches
B．about two thousand species will probably die out in next few decades
C．Kraemer and his team have succeeded in cloning a dog
D．scientists maintain that cloning animals is worth researching
单项选择题
The word groundbreaking (Line 3, Para. 5) can be best replaced by _______.
A．pioneering
B．evolutionary
C．unimaginable
D．epoch-making
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