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问题 单项选择题

患者，女性，25岁。诊断哮喘5年。近年来每当春季给花园除草后即出现咳嗽、咳痰伴哮喘发作，其可能的过敏原是

A．花粉

B．尘螨

C．寄生虫

D．病毒感染

E．细菌感染

答案

参考答案：A

单项选择题 A2型题

患儿，4岁，有久泻病史。近3个月来，面黄唇淡，发黄稀疏，食欲不振，体倦乏力，头晕目眩，睡眠不安，舌淡红，脉细弱。查血常规：血红蛋白95g/L。其治法是（）

A.健运脾胃，益气养血

B.补脾养心，益气生血

C.滋养肝肾，益精生血

D.温补脾肾，益阴养血

E.健脾养血，补肾益精
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单项选择题

Watch a baby between six and nine months old, and you will observe the basic concepts of geometry being learned. Once the baby has mastered the idea that space is three-dimensional, it reached out and begins grasping various kinds of objects. It is then, from perhaps nine to fifteen months, that the concepts of sets and numbers are formed. So far, so good. But now an ominous development takes place. The nerve fibers in the brain insulate themselves in such a way that the baby begins to hear sounds very precisely. Soon it picks up language, and it is then brought into direct communication with adults. From this point on, it is usually downhill all the way for mathematics, because the child now becomes exposed to all the nonsense words and beliefs of the community into which it has been so unfortunate as to have been born. Nature having done very well by the child to this point, having permitted it the luxury of thinking for itself for eighteen months, now abandons it to the arbitrary conventions and beliefs of society. But at least the child knows something of geometry and numbers, and it will always retain some memory of the early happy days, no matter what vicissitudes it may suffer later on. The main reservoir of mathematical talent in any society is thus possessed by children who are about two years old, children who have just learned to speak fluently.

The word " vicissitude" (in boldface) in the context means().

A. change

B. transformation

C. variation

D. the rubs and worries of life
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