单项选择题

A．It was interesting.
B．It was funny.
C．It was boring.
D．It was terrible.
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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
Synthetic biology is a very new science which has many limitations.
A．Y
B．N
C．NG
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