[問題]GWD 29-Q27

[bonus]

Q27:
Though sucking zinc lozenges has been promoted as a treatment for the common cold, research has revealed no consistent effect. Recently, however, a zinc gel applied nasally has been shown to greatly reduce the duration of colds. Since the gel contains zinc in the same form and concentration as the lozenges, the greater effectiveness of the gel must be due to the fact that cold viruses tend to concentrate in the nose, not the mouth.

In order to evaluate the argument, it would be most helpful to determine which of the following?

A. Whether zinc is effective only against colds, or also has an effect on other virally caused diseases.
B. Whether there are remedies that do not contain zinc but that, when taken orally, can reduce the duration of colds.
C. Whether people who frequently catch colds have a zinc deficiency.
D. Whether either the zinc gel or the lozenges contain ingredients that have an impact on the activity of the zinc.
E. Whether the zinc gel has an effect on the severity of cold symptoms, as well as on their duration.

Answer: D

[bonus]

lozenge和gel都含鋅，但是治療感冒效果不同
推出結論：原因是使用部位不同
D選項：
回答是的話，有其他物質存在，部位不同可能不是唯一原因——他因削弱；
回答否，則排除他因削弱的可能性——加強

[kaijen]

為什麼答案不是(B)?
如果除了鋅之外有其他的口服錠能夠消滅感冒 就可以代表病毒是集中在口腔
如果沒有 則病毒就是在鼻腔附近
我覺得還蠻合理的耶

[dibert8]

偶不是唸藥學的,是不是口服錠不能夠消滅鼻腔病毒?
(B) 因為 do not contain zinc 就以不在題目範圍內把它刪掉了.

[chencraig0227]

為什麼答案不是(B)?
如果除了鋅之外有其他的口服錠能夠消滅感冒 就可以代表病毒是集中在口腔
如果沒有 則病毒就是在鼻腔附近
我覺得還蠻合理的耶

乍看之下好像對，但仔細想想少一層邏輯關係...!
有其他藥口腔式的服用也可以消除感冒?
萬一我們找一個萬能藥 怎麼服用都有效..就算塞屁屁也有效呢?
無法進而推論含"鋅"的藥之特性
...應為無關選項....