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单项选择题

A．Mating habits of squid and octopus.
B．The evolution of certain form of sea life.
C．The study of marine shells.
D．Survival skills of sea creatures.
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热门试题

单项选择题A．Putting a roof on a barn.B．Harvesting water reeds.C．Using stone as a building material.D．Daily farm operations.

A．Putting a roof on a barn.
B．Harvesting water reeds.
C．Using stone as a building material.
D．Daily farm operations.

单项选择题A．The man attended the concert but didn’t like it.B．The man was sorry to miss the football game.C．The man is more interested in football than in classical music.D．The man was sorry that he didn’t attend the concert.

A．The man attended the concert but didn’t like it.
B．The man was sorry to miss the football game.
C．The man is more interested in football than in classical music.
D．The man was sorry that he didn’t attend the concert.