据统计,1970—1979年,美国的农业人口从占人口总数的5%下降到3%;同期,

题型:选择题

问题:

据统计,1970—1979年,美国的农业人口从占人口总数的5%下降到3%;同期,从事制造业的人口从30%下降到13%,而从事服务和信息行业的人口,从占人口总数的15%上升到72%。这说明

A.知识经济在美国诞生

B.美国进入信息化社会

C.科技在经济发展中的作用加大

D.第三次科技革命促进了社会经济结构的变大

考点:东盟的成立和发展
题型:选择题

在建设方案经济比选的方法中,属于效益比选方法的有()。

A.等额年费用比较法

B.最低价格比较法

C.净现值比较法

D.净年值比较法

E.差额投资内部收益率法

题型:选择题

10kV户外配电装置的裸露部分在跨越人行过道或作业区时,若导电部分对地高度小于2.9m,该裸露部分两侧和底部应装设护网。

题型:选择题

一位患者因肇事,造成耻骨骨折并刺破膀胱,检查所见,耻骨联合处已塌陷,骨折分类应属()

A.闭合性骨折

B.开放性骨折

C.裂缝骨折

D.压缩性骨折

E.骨骺分离

题型: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.

12()

A.deals

B.covers

C.involves

D.engages

题型:选择题

润滑的最主要的作用是()。

A.冷却作用

B.减少磨损,减轻磨损

C.冲洗作用

D.密封作用

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