ThereisanEnglishsaying，amp;quot;（71）___amp;quot;Untilrecently，fewpeopletookthesayingseriously．Nowhowever，doctorshavebeguntolookintolaughterandtheeffectsithasonthehumanbody．（72）___Testswerecarriedoutto

问题：ThereisanEnglishsaying，amp;quot;（71）___amp;quot;Untilrecently，fewpeopletookthesayingseriously．Nowhowever，doctorshavebeguntolookintolaughterandtheeffectsithasonthehumanbody．（72）___Testswerecarriedouttostudy

答案：↓↓↓

史玉苓的回答：

网友采纳　　71．F．推理判断题．从前面的句子：have begun to look into laughter and the effects it has on the human body医生开始研究笑以及对人类...