Official 47 Lec 2
答题结果:0/6
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Question 4 of 6
What does the professor imply about theories that explain how albatross navigate?

A.

They are based on studies of seabirds in captivity

B.

They are based on observations of albatross in the wild

C.

They are guesses that are not based on any evidence about birds

D.

They have not been confirmed by studies of albatross themselves

我的答案:

正确答案:D

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