Nexttimeyouhearafunnyjokeyou’dbetternotlaughtoohard.Acc...
问题详情：Nexttimeyouhearafunnyjokeyou’dbetternotlaughtoohard.AccordingtoapaperpublishedbytheBritishMedicalJournal,laughterisn’talwaysthebestmedicine.Sometimesit$来&源：canevenbeharmful.ProfessorRob...