一个分数的分子是9,分母是15,这个分数是______.

题型:解答题

问题:

一个分数的分子是9,分母是15,这个分数是______.

考点:分数的认识及意义
题型:解答题

春季是传染病的高发期,为此某学校制定了一些预防措施:

①开展“阳光体育活动”,保证学生每日有一定的运动量

②教学楼喷洒过氧乙酸消毒

③教室经常开窗通风

④经常洗后

⑤体弱者可以注射流感疫苗,

你认为属于切断传播途径的是(  )

A.②③④

B.①②③④

C.②③

D.②③⑤

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补写出下列名篇名句中的空缺部分。(8分)

小题1:故木受绳则直,金就砺则利。                            。 (荀子《劝学》)

小题2:秦人不暇自哀,而后人哀之,                            。(杜牧《阿房宫赋》)

小题3:                                     ,剑阁峥嵘而崔嵬。(李白《蜀道难》)

小题4:冰泉冷涩弦凝绝,凝绝不通声暂歇,                                   

(白居易《琵琶行》)

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Rh阴性母亲,其胎儿若Rh阳性,胎儿生后易患()

A.血友病

B.白血病

C.红细胞增多症

D.新生儿溶血病

E.巨幼红细胞性贫血

题型:解答题

抽样调查的特点是什么?

题型:解答题

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.

16()

A.irrespective

B.independent

C.regardless

D.implausible

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