An extensive study of Dutchmen found that ______ each day may keep heart doctor away. How many human studies do give strong sci

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问题 An extensive study of Dutchmen found that ______ each day may keep heart doctor away.
How many human studies do give strong scientific backing to the long held belief that eating fish can provide health benefits, particularly to the heart?

选项 A、Three.
B、Two.
C、Four.
D、One.

答案A

解析 细节题。答案在文章第二段第一句。由此可以看出一共有3项研究给予了强有力的科学支持。
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