推 lovekyoko:謝謝 06/28 11:26
※ 引述《lovekyoko (匹茲堡的天空)》之銘言：
: 24-35: The milk of many mammals contains cannabinoids, substances that are
: known to stimulate certain receptors in the brain. To investigate the
: function of cannabinoids, researchers injected newborn mice with a chemical
: that is known to block cannabinoides from reaching their receptors in the
: brain. The injected mice showed far less interest in feeding than normal
: newborn mice do. Therefore, cannabinoids probably function to stimulate the
: appetite.
: Which of the following is an assumption ok which the argument depends?
: A)Newborn mice do not normally ingest any substance other than their mothers’
: milk.
: B)Cannabinoids are the only substances in mammals’ milk that stimulate the
: appetite.
: C)The mothers of newborn mice do not normally make any effort to encourage
: their babies to feed.
: D)The mild of mammals would be less nutritious if it did not contain
: cannabinoids.
: E)The chemical that blocks cannabinoids from stimulating their brain
: receptors does not independently inhibit the appetite.
: 我被B跟E給迷惑了
: B取非 還有其他的物質可以刺激食慾
: E取非 這化學物質可以獨立的抑制食欲
: 請問BE取非有反駁節論嗎 我覺得都沒有耶
: 答案是E
: 謝
E取非有反駁結論
E取非的意思代表的是
食慾被抑制 不是因為cannabinoids被block
而是因為這個後來注射的化學物質本身就會抑制食慾
使得食慾跟cannabinoids之間的關連被打斷
因此會反駁cannabinoids有刺激食慾效用的結論
B取非則沒有辦法明確的反駁。
「可能有其他物質能刺激食慾」
這句話代表的是
可能後來注射的化學物質block的是那一些其他物質
使得食慾下降
但是在這邊仍然無法明確的知道
究竟cannabinoids有沒有刺激食慾的功用
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