填空题

Many people take part in non-mainstream science but they follow no rules.

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NG
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大学毕业生在择业方面有什么变化2. 导致这种变化的原因是什么3. 就如何解决这个问题给出你的建议 Job Problem for Graduates
单项选择题
From the first paragraph, we can learn that______.
A．dolphins and whales belong to the same animal family
B．the buffeo is very small
C．female dolphins are heavier than males
D．most whales are dolphins
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