问题 单项选择题

题16~22:

根据业主要求需要在一混凝土厂房内用形钢制刚架搭建一个不直接承受动力荷载的工作平台。横梁上承受均布荷载q=45kN/m(设计值),柱顶有一集中荷载P=93kN (设计值)。钢材为Q235-B·F。刚架横粱的一端与混凝土柱铰接(刚架可不考虑侧移):其结构的计算简图、粱柱的截面特性以及弯矩计算结果如题图所示。

提示:柱间有垂直支撑,A、B点可作为AB柱的侧向支承点。

柱:A=8208mm2梁:A=9440mm2

lx=13850×104mm4 lx=34610×104mm4

Wx=923×103mm3 Wx=1525×103mm3

ix=130mm ix=192mm

ly=3130×104mm4 Sx=848×103mm3

iy=67.7mm

当对横梁进行强度验算时,如其中的轴心力略去不计,BC段内的最大弯曲应力与()项数值相近。

A.166.5N/mm2

B.174.3N/mm2

C.183.0N/mm2

D.196.3N/mm2

答案

参考答案:B

解析:

完形填空

小题1:_____   People with intellectual disability form one of the largest single disability groups in a community. Intellectual disability refers to a general slowness to learn and function within society, and the identification of intellectual disability is usually based on an assessment of a person's performance in a variety of tests. An individual's level of performance, as assessed, can change with time and circumstances. With skilled training and opportunity for development, people with intellectual disability have much greater potential for acquiring skills and for participation in community life than previously had been thought possible.

小题2:_____   In many western societies, five categories of intellectual disability have traditionally been used in order to indicate the perceived degree of difficulty an individual has with learning. All five may occur in either children, adolescent or adult, and show as mild, moderate, severe, profound or multiple intellectual disability.

小题3:______   For the majority of intellectual disabilities, there is no identifiable cause but there are some causes that are well documented. They include: brain damage at birth due to lack of oxygen--- prolonged labor during childbirth; brain damage before birth due to factors such as rubella, drug or diet-related problems; damage after birth due to illnesses such as encephalitis or accident; hereditary defects in the genes; abnormal chromosome count resulting in, for example, Down Syndrome.

小题4:______   Like everyone else, people with an intellectual disability need a rewarding job, a satisfying place to live and a good social life. But they may need extra support to achieve these things. Good support services are based on the principle of normalization---which means enabling people to be part of the community like everyone else.

小题5:______   With the introduction of the intellectually disabled into communities, there is a need to promote awareness of communication. Although many people may have little experience in talking with an intellectually disabled person, there are common guidelines that can simplify the interaction. Firstly, it is useful to remember that people with disabilities have feelings .Speaking in the same friendly manner as you would to anyone else is also recommended. Being prepared to wait a little longer for replies during a conversation with an intellectually disabled person would undoubtedly benefit the exchange.

List of Headings

A. What do people with an intellectual disability need?

B. What is intellectual disability?

C. How do people with an intellectual disability talk?

D. What are the forms of intellectual disability?E.  What causes intellectual disability?

F.    How do you talk to a person with an intellectual disability?

多项选择题