What conclusion can we draw from the passage?

A．The human body requires a large amount of hormones.

B．Synthetic hormones can replace a person's natural supply of hormones if necessary.

C．The quantity of hormones produced and their effect on the body are related to a person's age.

D．The short child of tall parents probably had a hormone deficiency early in life.

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答案解析

定位：根据题干信息conclusion可知解答本题需通观全文。
解析：选项C的意思是 “人体所产生的激素的数量以及它们对于人体的影响与人的年龄有关”，这与第一段最后一句话意思相近，原文提到：“成年以后，内分泌腺体产生不同的分泌物，身体也开始对不同的激素做出敏感程度各不相同的反应，这些都是人体成长或老化现象必不可少的方面。”可见激素的分泌的确与年龄有关。其他选项均在文中找不到依据。本题选c。

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