According to the author, ______. The author mentions that the maximum THR for older adult participants in sports should be less

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问题 According to the author, ______.
The author mentions that the maximum THR for older adult participants in sports should be less than ______ beats per minute.

选项 A、60
B、120
C、180
D、240

答案B

解析 浏览查询细节题。文章中的第四段谈到“...the THR should not exceed l20 bents per minute."据此可知B是正确答案。
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