单项选择题

Why might the increasing number of whales cause problems with their health（）

A．There’s not enough room for them in Alaska.
B．There may not be enough food for them in Alaska.
C．They get pushed ashore.
D．There are more whales to spread diseas

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热门试题

单项选择题

The Alsatian’s olfactory cells are （）times as many as man’s.

A．forty-four
B．one million
C．220 million
D．10,000

单项选择题

The old man was very strange because （）

A．he liked to live alone
B．people didn’t like him and were afraid of him
C．he liked to walk in the woods without roads
D．he didn’t do anything as the others did