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问题 单项选择题

从经济学角度看，任何一种商品的价格都是由（）两方面的因素共同决定的。

A.成本与利润

B.供求

C.质量与技术

D.供给

答案

参考答案：B

解析：商品的价格由供求双方面决定。故答案为B。

单项选择题

关于适应性障碍临床表现的描述正确的是

A.无明显的苦恼 

B.情绪与行为异常多在应激发生后3个月内出现 

C.社会功能无明显受损 

D.应激源消失后，症状持续不超过6个月 

E.精神病性症状常见 
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单项选择题

A new mother is concerned because her breast-feeding neonate wants to "nurse all the time. " Which of the following responses best indicates the normal neonate's breast-feeding behavior

A．"Breast milk is ideal for your baby, so his stomach will digest it quickly, requiring more feedings. "

B．"Let me call the lactation consultant to make sure that your baby is feeding properly. "

C．"Don't worry; your baby is an aggressive feeder and needs a lot of sucking satisfaction. "

D．"It seems as if your baby is hungry. Why don't you provide your baby with some formula after the feeding to make sure he's getting enough nourishment"
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