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问题 单项选择题 A1型题

健康猪的脉搏频率为（）

A.70～120次／min

B.60～80次/min

C.70～80次/min

D.50～80次/min

E.30～50次/min

答案

参考答案：B

单项选择题

由于溶液中所带的正、负电量总是相等的，所以溶液是（）电性的。

A.不显

B.显

C.正

D.负
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单项选择题

Parents of a child with cystic fibrosis demonstrate knowledge of the effects of hot weather on their child when they state that hot weather is hazardous because the child has which of the following（）

A. Poor ability to concentrate urine.

B. Little skin pigment to prevent sunburn.

C. Poorly functioning temperature control center.

D. Abnormally high salt loss through perspiration.
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