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新生儿头围平均_______，6个月时_____，1岁时_____，2岁时_____，头围较小常提示_________，增长过速常提示__________。

答案

参考答案：32～34cm；42cm；46cm；48cm；脑发育不良；脑积水

单项选择题

1948年世界卫生组织对健康定义为

A．健康是指躯体方面、精神方面、社会适应方面没有疾病

B．健康是指躯体、精神、社会适应等方面没有疾病或虚弱

C．健康不仅仅是没有疾病或虚弱，而且包括在躯体、精神和社会适应方面的完好状态

D．健康是指躯体没有疾病或虚弱，处于完好状态

E．健康是指躯体整体结构和功能的良好状况
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From the child to old age, we all use language as a means of (36) our knowledge of ourselves and the world around us. When humans first (37) , they were like newborn children, unable to use this valuable tool. Yet once language developed, the (38) for human’s kind’s future attainment and cultural growth increased.
Many linguists believe that evolution is (39) for our ability to produce and use language. They (40) that our high evolved brain provides us with an innate language ability not found in lower organism. Proponents of this innateness theory say that our potential for language is (41) , but that language itself develops (42) , as a function of the growth of the brain during childhood. Therefore there are critical biological times for language development.
Current reviews of innateness theory are mixed, however, evidence supporting the (43) of some innate abilities is undeniable. Indeed, more and more schools are discovering that foreign languages are best taught in the lower grades. (44) .
Although some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been isolated from other human beings do not possess language. (45) Some linguists believe that this is even more basic to human language acquisition than any innate capacities. These theorists view language as imitative, learned behavior. In other words, children learn language from their parents by imitating them. (46) .
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