[語文] CR GWD25-36

[kenting15 (我不像我)]

36. GWD25-Q36
The chemical adenosine is released by brain cells when those cells are
active. Adenosine then binds to more and more sites on cells in certain areas
of the brain, as the total amount released gradually increases during
wakefulness. During sleep, the number of sites to which adenosine is bound
decreases. Some researchers have hypothesized that it is the cumulative
binding of adenosine to a large number of sites that causes the onset of
sleep.

Which of the following, if true, provides the most support for the researchers'
hypothesis?

A. Even after long periods of sleep when adenosine is at its lowest
   concentration in the brain, the number of brain cells bound with adenosine
   remains very large.

D. Some areas of the brain that are relatively inactive nonetheless release
   some adenosine.

答案是D
其實我看不太懂最後some researchers的推論
不過先排除了幾個無關的選項
請問這題該如何解....(這題答案無法用技巧some刪題> <)

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◆ From: 219.70.188.224
※ 編輯: kenting15       來自: 219.70.188.224       (07/15 15:20)
※ 編輯: kenting15       來自: 219.70.188.224       (07/15 15:21)
推 ylchen:我會想選B耶！請高手解惑為什麼選D呢？
推 Calla:我看網路上說official answer是B 不過我稍微想過 請指正
→ Calla:排除ACD: A 反駁研究人假設, CD和結論(adenosine和醒/睡的
→ Calla:關連)無關
→ Calla:E仔細觀察也錯:壓力使人在A很多時依然能保持清醒  是語病
→ Calla:並無法證明A的累積會導致睡眠... 只有B(已知咖啡因會阻絕
→ Calla:A累積同時有讓人保持清醒的功效)=>支持A累積到很多會zZZ