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[originaltext] Whales--or their ancestors--were once land animals. Scientist
[originaltext] Whales--or their ancestors--were once land animals. Scientist
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2023-09-13
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问题
Whales--or their ancestors--were once land animals. Scientists believe that they roamed the earth about 150 million years ago.
The land-dwelling ancestors of this modem king of the sea were hunters with legs and the jaws and teeth of killers. Their favorite hunting grounds were probably shallow waters near the mouths of rivers or off a level stretch of coast, for fish, both finny and shell, were then more plentiful in the water.
Ages passed, and it became easier for these creatures to swim than to walk; millions of years later they were able to do without legs altogether. Now their hind legs had shrunk so that mere traces of them can be found under the skin when a whale is dissected.
选项
A、Waters off a level coast.
B、The forest areas near the sea.
C、The areas near the mouths of rivers.
D、Both A and C.
答案
D
解析
事实细节题 原文当中已经提到鲸鱼的狩猎范围一般为海岸的水平面之下或者河口附近的浅水处。
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