The results of the new study are unexpected. All those people who took part in the study received vitamins and minerals.

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问题 The results of the new study are unexpected.
All those people who took part in the study received vitamins and minerals.

选项 A、Right
B、Wrong
C、Not mentioned

答案B

解析 文章第二段中提到,研究者们把实验对象分成8组,其中的7组每天服用不同的维生素和矿物质混合物,第8组服用毫无作用的糖丸。故B为答案。
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