The concept of personal choice concerning health is important because______. Sound personal health choice is often difficult to

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问题 The concept of personal choice concerning health is important because______.
Sound personal health choice is often difficult to make because______.

选项 A、current medical knowledge is still insufficient
B、there are many factors influencing our decisions
C、few people are willing to trade the quality of life for the quantity of life
D、people are usually influenced by the behavior of their friends

答案B

解析 本题为细节题。文章讲的是人们不能基于医学知识做出健康选择,主要从个人主观角度分析原因而并非因我们医学知识匮乏,因此A项排除;C项内容文章最后一句虽有所提及,但并未构成因果关系,也与题干不符;D项仅为影响个人选择的"environmental"因素,不够全面;B项"有许多因素影响我们的决定"与第二段第一句话"A multitude of factors,both inherited and environmental,influence the development of health-related behaviors"一致,因此正确。
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