为了反映企业库存原材料成本的增减变化及其结存情况，应设置( )账户。A．材料采购B

圆的面积与它的半径[ ]

A．成反比例     

B．成正比例    

C．不成比例

The doctor thought ___ would be good for you to have a holiday.

A．this

B．that

C． one

D．it

在关系型数据库设计理论的诸多方面中，起着核心作用的是( )。

A．数据依赖

B．第一范式

C．概念设计方法

D．第二范式

埋弧自动焊时，阴极温度比阳极温度高，这是由于CaF2中的F易形成正离子，要求阴极极能具备更强的电子发射能力，同时负离子在阴极区与正离子中和时吸收大量热量所致。

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