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问题 选择题

在一张长6厘米，宽4厘米的长方形纸板上剪一个面积最大的圆，这个圆的面积是[ ]

A．28.26平方厘米

B．12.56平方厘米

C．50.24平方厘米

答案

答案：B

名词解释

单系继嗣
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单项选择题

A 72-year-old client seeks help for chronic constipation. This is a common problem for elderly clients due to several factors related to aging. Which of the following is one such factor（）

A. Increased intestinal motility.

B. Decreased abdominal strength.

C. Increased intestinal bacteria.

D. Decreased production of hydrochloric acid.
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