Official 49 Lec 3
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Question 4 of 6
What does the professor imply about lichens?

A.

They need reindeer in order to survive

B.

They are more abundant than other arctic plants during the winter

C.

They are more important to cows and sheep than they are to reindeer

D.

They are the object of fierce competition among arctic animals

我的答案:

正确答案:B

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