[CR. ] GWD TN-18
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
OA: D
即使吃Z.L被提倡為治療感冒的一種方式，但研究人員並不認同。
然而近來卻發現Z.G (which is applied nasally)能有效地降低感冒時間。
由於Z.G和Z.L有著相同的form和濃度，
因此Z.G效果更好的原因是感冒病毒傾向集中在鼻子而非嘴巴。
做題時我覺得論點應該是在
"the greater effectiveness of the gel must be due to the fact that
cold viruses tend to concentrate in the nose, not the mouth"
(不確定是否正確)
想了很久還是無法理解鋅的活躍度為什麼能對論點造成影響
想請問正解與論點之間的關聯。
非常感謝！！
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