TPO18 The Mystery of Yawning - 英檢

我想請大家一個跟題目 無關的句子 因為我看得很困惑

According to conventional theory, yawning takes place when people are bored or
sleepy and serves the function of increasing alertness by reversing, through
deeper breathing, the drop in blood oxygen levels that are caused by the
shallow breathing that accompanies lack of sleep or boredom. Unfortunately,
the few scientific investigations of yawning have failed to find any
connection between how often someone yawns and how much sleep they have had
or how tired they are. About the closest any research has come to supporting
the tiredness theory is to confirm just a developmental fossil with no that
adults yawn more often on weekdays than at weekends, and that school children
yawn more frequently in their first year at primary school than they od in
kindergarten

請問後面這句

About the closest any research has come to supporting
the tiredness theory is to confirm just a developmental fossil with no that
adults yawn more often on weekdays than at weekends, and that school children
yawn more frequently in their first year at primary school than they od in
kindergarten

用了no that 是再說沒有觀察到後面敘述的現象嗎

但是 前面的句子又說 這個research 可以支持triedness theory

感覺是我理解出錯了 可以麻煩大家幫我解答一下嗎 謝謝

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