问题 单项选择题 A2型题

患者男性,28岁,突发头晕后自二楼阳台坠落2小时来院。查体:神志清醒,面色苍白,血压90/60mmHg,心率88次/分,双上肢能自主活动。T11棘突区叩痛,略显外凸,双下肢无活动,肌张力低,Babinski征未能引出。目前比较明确的主要诊断是()

A.脑挫裂伤伴脑内血肿

B.脑出血伴脑内血肿

C.自发性蛛网膜下腔出血

D.胸椎骨折伴脊髓损伤

E.暂无明确诊断

答案

参考答案:D

解析:根据T11棘突叩痛、双下肢软瘫等临床表现,T11骨折伴截瘫(脊休克)的诊断比较明确,而头晕导致坠落的病因目前没有可信证据来确认,也不能确认是否并存颅脑外伤,所以其他选项都不能确定。

问答题
单项选择题

C

A scientist working at her lab bench and a six-old baby playing with his food might seem to have little in common.After all,the scientist is engaged in serious research to uncover the very nature of the physical world,and the baby is,well, just playing…right?Perhaps,but some developmental psychologists()have argued that this“play”is  more like a scientific investigation than one might think.

Take a closer look at the baby playing at the table.Each time the bowl of rice is pushed over the table edge,it

falls in the ground---and, in the process, it belongs out important evidence about how physical objects interact ; bowls of rice do not flood in mid-sit, but require support to remain stable. It is likely that babies are not born knowing the basic fact of the universe; nor are they ever clearly taught it. Instead, babies may form an understanding of object support through repeated experiments and then build on this knowledge to learn even more about how objects interact. Though their ranges and tools differ, the baby’s investigation and the scientist’s experiment appear to share the same aim(to learn about the natural world ), overall approach (gathering direct evidence from the world), and logic (are my observations what I expected?).

Some psychologists suggest that young children learn about more than just the physical world in this way---that they investigate human psychology and the rules of language  using similar means. For example, it may only be through repeated experiments, evidence gathering, and finally overturning a theory, that a baby will come to accept the idea that other people can have different views and desires from what he or she has, for example, unlike the child , Mommy actually doesn’t like Dove chocolate.

Viewing childhood development as a scientific investigation throws on how children learn ,but it also offers an inspiring look at science and scientists. Why do young children and scientists seem to be so much alike? Psychologists have suggested that science as an effort ---the desire to explore, explain, and understand our world---is simply something that comes from our babyhood. Perhaps evolution provided human babies with curiosity and a natural drive to explain their worlds, and adult scientists simply make use of the same drive that served them as children. The same cognitive systems that make young children feel good about feel good about figuring something out may have been adopted by adult scientists. As some psychologists put it, ”It is not that children are little scientists but that scientists are big children.”

What is the author’s tone when he discusses the connection between scientists’ research and babies’ play?()

A. Convincing.

B. Confused.

C. Confidence.

D. Cautious.