本月罗吉寂静求解...................

jasminerocks

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.
B.    Caffeine, which has the effect of making people remain wakeful, is known to interfere with the binding of adenosine to sites on brain cells.
C.    Besides binding to sites in the brain, adenosine is known to be involved in biochemical reactions throughout the body.
D.    Some areas of the brain that are relatively inactive nonetheless release some adenosine.
E.    Stress resulting from a dangerous situation can preserve wakefulness even when brain levels of bound adenosine are high.


据说是GWD上的考古，有没有NN来分析一下选项，怕考试的时候会遇到变体

CDE明显是不对的，帮忙分析一下A选项吧

yxz2289

题目结论是：A这个东西和脑细胞结合导致了睡眠
题目要你选一个支持的选项，即是说这种结合和睡眠有关系
A说即使经过长时期的睡眠，这种结合的数量都不会减少。那么有可能睡眠和这种结合是没有关系的。这样来看，A选项反而是weaken了结论。
本人一点想法，欢迎拍砖~另外明天腾飞早场考试，攒人品！

anenxi

答案不是B吗？

yxz2289

LZ让分析A么，我就分析一下A喽~答案显然是B啊

jasminerocks

题目结论是：A这个东西和脑细胞结合导致了睡眠
题目要你选一个支持的选项，即是说这种结合和睡眠有关系
A说即使经过长时期的睡眠，这种结合的数量都不会减少。那么有可能睡眠和这种结合是没有关系的。这样来看，A选项反而是weaken了结论。
本人一点想法，欢迎拍砖~另外明天腾飞早场考试，攒人品！

-- by 会员 yxz2289 (2011/10/30 14:30:10)

多谢解答，祝你明天考出好成绩，加油啊~~~~~

jasminerocks

题目结论是：A这个东西和脑细胞结合导致了睡眠
题目要你选一个支持的选项，即是说这种结合和睡眠有关系
A说即使经过长时期的睡眠，这种结合的数量都不会减少。那么有可能睡眠和这种结合是没有关系的。这样来看，A选项反而是weaken了结论。
本人一点想法，欢迎拍砖~另外明天腾飞早场考试，攒人品！

-- by 会员 yxz2289 (2011/10/30 14:30:10)

而且如果明天这道题考weaken的话你也不会就选B了啊，哈哈哈~~

yxz2289

如果明天真考到我还得谢谢你呢，你没问之前我没想过A会weaken结论的，呵呵

anenxi

祝你考试好运哦~加油！