Wilt Chamberlain is cited as an example to The text intends to tell us that

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问题 Wilt Chamberlain is cited as an example to
The text intends to tell us that

选项 A、the change of human height follows a cyclic pattern.
B、human height is becoming even more predictable.
C、Americans have reached their genetic growth limit.
D、the genetic pattern of Americans has altered.

答案C

解析 主旨题。首先,由于本文所探讨的问题局限在美国范围内,因此凡是使用了"人类"字样的选项都放大了范围。而根据原文第二段首句:Americans have generally stopped growing. 知道美国人"停止了生长"。
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