题目内容

The descriptive of a language at sometime point in time is a_______study.

A. descriptive
B. prescriptive
C. synchronic
D. diachronic

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People can not use language as freely as he likes because ().

A. Language is also conventional. Eg. We cannot change the expression of idiom.
B. Language is not arbitrary at the syntactic level.
C. There is an arbitrary relationship between the sound and its meaning for all words.

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Pragmaticsisthestudyoflinguisticactsandcontextsinwhichtheyareperformed.

A. 对
B. 错

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液压系统中液压泵的实际工作压力取决于（）

A. 额定压力
B. 流量
C. 负载
D. 电机功率

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在没有泄漏的情况下，根据泵的几何尺寸计算而得到的流量称为（），它等于排量和转速的乘积。

A. 实际流量
B. 瞬时流量
C. 额定流量
D. 理论流量

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The descriptive of a language at sometime point in time is a_______study.

A. descriptive B. prescriptive C. synchronic D. diachronic

People can not use language as freely as he likes because ().

Pragmaticsisthestudyoflinguisticactsandcontextsinwhichtheyareperformed.

液压系统中液压泵的实际工作压力取决于（ ）

在没有泄漏的情况下，根据泵的几何尺寸计算而得到的流量称为（），它等于排量和转速的乘积。

A. descriptive
B. prescriptive
C. synchronic
D. diachronic

液压系统中液压泵的实际工作压力取决于（）