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问题 单项选择题

T1载波采用（）复用技术，将（）路话音复用在一条通信线路上，每路话音信号要经过编码器进行采样，采样频率为（）Hz。

 

将（）路话音复用在一条通信线路上

A．16

B．24

C．59

D．124

答案

参考答案：B

填空题

1) ______ the Oral Approach
2) ______ the Cognitive Approach
3) ______ the Direct Method
4) ______ the Audiolingnal Method
5) ______ the Natural Approach
a) According to Gouin, verbal expression is intimately linked with thought about real events. Thoughts and utterances came in sequences and ends-means series.
b) Primary importance is attached to meaning, context and situation.
c) Language is structured like a pyramid, that is ,linguistic levels are systems within systems.
d) Language is characterized by rule-governed creativity.
e) Communication is the primary function of language, and emphasis is on meaning.
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单项选择题 案例分析题

某独立钢结构设备平台，其横向为框架结构，柱列纵向设交叉支撑，柱脚铰结（平板支座）。平台主次梁间采用简支平接，平台板采用带肋钢铺板，结构布置图详见下图。梁柱构件均选用轧制H型钢，全部钢材均为Q235-B，焊条采用E43型焊条。平台结构布置图

梁L-1选用HN446×199×8×12，其截面抵抗矩Wx=1300×103mm3；计算简图如下图所示。已知均布荷载设计值q=8kN／m（已含结构自重），集中荷载设计值P=56kN。试问，梁L-1跨中截面弯曲应力设计值（N／mm2），应与下列何项数值最为接近？（）支座反力

A.154

B.170

C.182

D.201
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