单项选择题

What is the speaker mainly talking about（）

A．How animals survive harsh conditions in the wild.
B．How animals alter colors to match their surroundings.
C．How animals protect themselves against predators.
D．How animals learn to disguise themselves effectively.

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单项选择题
What does the woman mean（）

A．She met with Thomas just a few days ago.
B．She can help with the orientation program.
C．She is not sure she can pass on the message.
D．She will certainly try to contact Thomas.
单项选择题
The panda is an endangered species, which means that it is very likely to become （）without adequate protection.

A．intact
B．insane
C．extinct
D．exempt
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