A. How sea animals manage to exist.
B. How large sea animals can be.
C. How frightening the squid is.
D. How little is known about the sea.

A.
B.
B.
C.
C.
D.
D.


【参考答案】

D
D【解题思路】两项提到seaanimals，一项提到squid，一项提到sea，本题考查的内容可能与海洋动物......

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