GWD-21 Q33

[小茉莉]

GWD 21-33
One of the limiting factors in human physical performance is the amount of oxygen that is absorbed by the muscles from the bloodstream. Accordingly, entrepreneurs have begun selling at gymnasiums and health clubs bottles of drinking water, labeled “SuperOXY,” that has extra oxygen dissolved in the water. Such water would be useless in improving physical performance, however, since[b]the only way to get oxygen into the bloodstream so that it can be absorbed bye the muscles is through the lungs.[/b]
Which of the following, if true, would serve the same function in the argument as the statement in boldface?

A. the water lost in exercising can be replaced with ordinary tap water
B. the amount of oxygen in the blood of people who are exercising is already more than the muscle can absorb
C. world-class athletes turn in record performance without such water
D. frequent physical exercise increases the body’s ability to take in and use oxygen
E. lack of oxygen is not the only factor limiting human physical performance

答案給A 有些給B
我想確認應該是B
理由文中所講的是 肌肉取得氧氣的唯一方法是經由肺 -->喝水沒用
B所說運動者血液所含氧氣已經超過肌肉可以吸收--->也可說成喝水沒用
想與大家討論討論

[liwuu]

怪怪的題目...但這五個選項我也比較偏好B!!

[reohuang]

I also go for B

題目問的serve the same function應該是何者同樣指支持"Such water would be useless in improving physical performance"這件事

B說本來就夠多了...所以再多用喝的也沒有用...support such water would be useless in improving physical performance

open to discuss~

[step by step]

曾經聽美加的江老師說過CR的題型
第一代就是在OG第10版中除了Q205外的其他題號
第二代是boldface題，問boldface所扮演的角色
這應該是屬於第三代的問題吧，除了需要了解boldface所扮演的角色之外，還要在選項中另外判斷跟boldface所扮演相同角色的答案...

我的想法跟大家一樣，要在選項中找出能夠支持such water would be useless in improving physical performance的答案---->(B)

[superruby]

I go for (B) too,
(A) is irrelevant, the boldface part is concerning "oxgen" not water.

[summerhot]

I go for (B) too,
(A) is irrelevant, the boldface part is concerning "oxgen" not water.

我也同意這個說法

[dibert8]

the only way to get oxygen into the bloodstream so that it can be absorbed bye the muscles is through the lungs
喝含氧的水並不能讓肌肉吸收,因為"由肺吸入氧進入血液是肌肉吸收氧的唯一途徑."

(A) "缺水補充水",那BF應該是"缺氧補充氧"
(B) 血液裡的氧多過肌肉所能吸收=>那只要吸收剛好就好啦!多出來有關係嗎?肌肉還是可以從血液裡吸收氧啊!
跟題目舉的例---喝的不行,呼吸才是正途---好像不一樣哩!
BF 沒有"不能吸收"這樣的字眼或意思啊!
(C) 世界選手沒喝SuperOXY => 無關
(D) 常運動增加肺功能 => 常運動是增加肺功能的正途
(E) 缺氧不是影響健康的唯一因素 => 無關

我覺得是 (D) 也.

[dibert8]

再想一次,開始能理解 (B), 用下面的方法試試.
用代換法,以選項代換 BF.
題目:水裡含的氧無效,因為"由肺吸進的氧才能被吸收"(水中的氧無效)
代換:血管裡的氧無效,因為"血管裡的氧多過肌肉所能吸收"(血管中的氧無效)