单项选择题

Passage One Questions 26 to 28 are based on the passage you have just heard.

A．By cloning endangered species.
B．By preventing them from being killed.
C．By watching over them carefully.
D．By conducting many experiments.
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单项选择题
A．He is disappointed.B．He is pleased.C．He is indifferent.D．He is angry.
A．He is disappointed.
B．He is pleased.
C．He is indifferent.
D．He is angry.
单项选择题
A．Animals with the exact same genes can be different in sizes and character traits.B．Animals with the exact same genes can only be the sizes and character traits.C．Animals with different genes can be the same in sizes and character traits.D．Animals with different genes have been cloned all over the world.
A．Animals with the exact same genes can be different in sizes and character traits.
B．Animals with the exact same genes can only be the sizes and character traits.
C．Animals with different genes can be the same in sizes and character traits.
D．Animals with different genes have been cloned all over the world.
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