It is implied in the passage that ______.
A、many scientists had known dinoflagellate before 1988
B、there had been no such organisms before 1988
C、many scientists were in doubt about the nature of the organism in 1988
D、no scientists knew anything about the organism in 1988
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正确答案
试题解析
推断题。第二段第二句提到1988年在北卡罗莱纳州立大学发现了这种生物时，“few scientists believed in its existence, much less in its highly unusual predatory nature.”，可知那时几乎没有科学家会相信microscopic organisms真的存在，更没有人相信它非同寻常的食肉天性（predatory nature）了。换句话说就是许多科学家对microscopic organisms的食肉天性表示怀疑，因此选项C为正确答案。
