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问题 单项选择题 A1/A2型题

RA患者最主要的自身抗体是 （）

A.ANA

B.RF

C.抗组蛋白抗体

D.抗ssDNA抗体

E.抗角蛋白抗体

答案

参考答案：B

解析：类风湿因子（RF）是以变性IgG为靶抗原的自身抗体，主要出现在类风湿关节炎（RA）患者，约70%～90%的血清中和约60%的滑膜液中可检出RF。因此本题最佳答案是B。

单项选择题

Starting with his review of Skinner’s Verbal Behavior, Noam Chomsky had led the psycholinguists who argue that man has developed an innate (天生的) capacity for dealing with the linguistic universals common to all languages. Experience and learning then provide only information about the (1) instances of those universal aspects of language which are needed to communicate with other people within a particular language (2) .

This linguistic approach (3) the view that language is built upon learned associations between words. What is learned is not strings of words per se (本身), but (4) rules that enable a speaker to (5) an infinite variety of novel sentences. (6) single words are learned as concepts: they do not stand in a one-to-one (7) with the particular thing signified, but (8) all members of a general class.

This view of the innate aspect of language learning is at first not readily (9) into existing psychological frameworks and (10) a challenge that has stimulated much thought and new research directions. Chomsky argues that a precondition for language development is the existence of certain principles "intrinsic (原有的) to the mind" that provide invariant structures (11) perceiving, learning and thinking. Language (12) all of these processes; thus its study (13) our theories of knowledge in general.

Basic to this model of language is the notion that a child’s learning of language is a kind of theory (14) . It’s thought to be accomplished (15) explicit instruction, (16) of intelligence level, at an early age when he is not capable of other complex (17) or motor achievements, and with relatively little reliable data to go on. (18) , the child constructs a theory of an ideal language which has broad (19) power. Chomsky argues that all children could not develop the same basic theory (20) it not for the innate existence of properties of mental organization which limit the possible properties of languages.

18（）

A.Nevertheless

B.Furthermore

C.Though

D.Accordingly
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单项选择题

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A、当日至迟下一个法定工件日上午

B、当日至迟下一个法定工作日

C、当日至迟下一个法定工作日下午
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