单项选择题

What could be the major problem in cloning pandas according to Dr. Kraemer

A．Lack of available panda eggs.
B．Lack of host animals.
C．Lack of qualified researchers.
D．Lack of funds.
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单项选择题
The aim of Noah's Ark project is to ______.
A．implant embryo into a host animals
B．salute the Chinese efforts in saving pandas
C．save endangered animals from extinction
D．introduce a new species
单项选择题
The word groundbreaking (Para. 6) can be interpreted as ______.
A．essentially new
B．pioneering
C．evolutionary
D．epoch-making
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