A.We know the exact number of whales in the sea. |
B.It’s easy for us to count whales in the sea. |
C.We find it impossible to count whales in the sea. |
D.We don’t want to know how many whales there are in the sea. |
A.more slowly than that of humpback whales |
B.faster than that of humpback whales |
C.a(chǎn)s slowly as that of humpback whales |
D.a(chǎn)s fast as that of humpback whales |
A.the number of humpback whales |
B.the number of right whales |
C.hunting whales |
D.the necessity of protecting whales |
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