单项选择题

There is a misunderstanding that___________.

A．sharks can discover a diver by the movement of his hands in water
B．sharks have very strong sense of smell
C．sharks have poor eyesight
D．sharks are great threats to divers

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热门试题

单项选择题

The best title for the passage is__________.

A．The Mysteries of Animal Communication
B．Something Unknown About Sharks
C．An Adventure
D．How Divers Discover Sharks Under the Sea

单项选择题

What might make you think about the poor people

A．Graveyard.
B．A district with unrepaired houses.
C．Ancient buildings.
D．Low-hanging clouds.