运营管理 - 自考题库

出自:运营管理

普通混凝土的用水量增大,混凝土的干缩增大。 ( )
·正确
·错误

水泥混凝土的强度等级与标号只是叫法不同,其含义并无区别。 ( )
·正确
·错误

普通水泥的细度不合格时,水泥为废品。 ( )
·正确
·错误

塑料的基本组成为为树脂。 ( )
·正确
·错误

工程中常用油石比来表示沥青混合料中的沥青用量。 ( )
·正确
·错误

沥青针入度越大,其温度稳定性越好 ( )
·正确
·错误

影响硅酸盐水泥强度的主要因素包括( )。
·熟料组成
·水泥细度
·龄期
·养护条件

生产硅酸盐水泥的主要原料有( )。
·石灰石
·粘土
·铁矿粉
·白云石

硅酸盐水泥腐蚀的基本原因是( )。
·含过多的游离氧化钙
·水泥石中存在Ca(OH)2
·水泥石中存在水化铝酸钙
·水泥石本身不密实

强度和抗风化性能合格的烧结普通砖，根据（）等分为优等品（Ａ）、一等品（Ｂ）和合格品（Ｃ）三个质量等级。
·尺寸偏差
·外观质量
·泛霜
·石灰爆裂
·抗冻性

下列材料中,属于非活性混合材料的是( )。
·石灰石粉
·矿渣
·火山灰
·粉煤灰

材料的孔隙率增大时,其性质保持不变的是________。( )
·表观密度
·堆积密度
·密度
·强度

材料抗渗性的指标为（）。
·软化系数
·渗透系数
·抗渗指标
·吸水率

已知商品混凝土的砂石比为0.54，则砂率为（）。
·0.35
·0.30
·0.54
·1.86

测定沥青碎石混合料密度最常用的方法为( )。
·水中重法;
·表干法;
·蜡封法;
·体积法

石油沥青老化后,其软化点较原沥青将( )。
·升高;
·保持不变;
·降低;
·先升高后降低

沥青混合料中,掺加矿粉的目的是为了( )
·提高稳定度;
·提高密实度;
·增加流值;
·改善工艺性

下列溶剂中,能将沥青中裂解出的油分完全溶解的溶剂是( )。
·乙醇;
·乙醚;
·石油醚;
·乙醚和石油醚

冬季混凝土施工时宜优先考虑的外加剂为( )。
·缓凝剂
·速凝剂
·防冻剂
·早强剂

Across which measure, the effect of social engagement oreduced disability was consistent
· Disabled people.
· Young people.
· Old people.
· Women.

Social activities seem to disease andlongevity.
· produce, reduce
·protect against, increase
·kill, increase
·cause, reduce

There is evidence that socializatioand recreatiohold important health benefits.
·clear
·no
·increasing
·little

Many young people enjoy sports as .
·bobby
·fun
·a bobby
·a dating practice

Many forms of recreatioare popular because they offer opportunities to with others.
· socialize
· interact
·A and B
· know

Susawas caught ithe raioher way home. _________, she had a bad cold .
· Rather than
· Instead of
· Because of
·As a result

Sally failed to get the ticket oFriday because there were no tickets ________.
· addictive
· available
· absurd
· availability

The freshma______ lives downstairs speaks English fluently.
· whom
· who
· whose
· where

Dohas bee_________ about flying his owplane since he was a little boy.
· passionate
· passion
· passionately
· passionless

The students were all disappointed to learthat the picnic had bee________.
· attracted
· claimed
· seized
· canceled

If we have the courage to ______ our dreams and work hard, they will come true.
· pursue
· pursuit
· pursuant
· pursuance

Let me______ the brokeglass before someone walks oit.
· get up
· eat up
· cleaup
· stand up

______the freshmemet with difficulties, they would turto their tutors (辅导员) for help.
· Whatever
· However
· Whenever
· Whichever

Scientists try to ______ how the universe works.
·take apart
· turout
· break out
· figure out

The office clerk put salt into her tea______.
· by means
· by mistake
· by turns
· by time

People from the Southeast Asiacountries all hope that the inflatio(通货膨胀) will __________ at aacceptable rate.
· be levelled
· level
· was levelled
· leveled

Ithe TV interview (采访), the famous singer owed her ______ to hard work and good luck.
·wealthy
· Wealthiness
· wealth
· wealthiest

Being _____doesn’t meabeing always happy.
· wealth
·wealthy
· wealthiness
·healthily

The fight ended only with the _____ arrival of the police.
· time
· timely
· timeless
·timetable

The heroine was famous for her _____ actioithe movie.
· courage
· cougar
· courageous
· niece

Uncle Liu had the qualities needed to become a good singer and composer whehe was a college student. He ________ be a musician.
· meato
· means to
· be meant to
· was meant to

Worry over his job and his wife’s health put him under great ________.
· press
· stress
· press on
· stress on

Mostpeoplefeelit_____tohaveabloodtesteveryyearaftertheyare40.
· necessity
· necessarily
· necessary
· recces

It’s so hot here isummer. Childrelike to _____ aice cream otheir way to school.
· go out
· go to
· go in
·go for

It’s quite _______ that a motorway will be built here next year.
· probable
· probably
·probability
· probabilistic

The passage is mainly about ____ .
· the negotiatiowith aemployer
· the employment contract
· the working conditions
·the job responsibilities

If the employee receives his pay icash, this practice will be regarded as ______ .
· reasonable
· practical
· illegal
·unfair

According to the passage, the trade unioand employer may negotiate aagreement o_____________ .
· paid holidays
· insurance terms
· training programs
·conditions at work

“Custom and practice” agreement are usually ______________ .
· included ithe contract
· knowto employees only
· always writteclearly ithe contract
·signed by both the employer and a trade union

According to the first paragraph, a contract of employment _____________ .
·must be a writteone
· could be iaoral form
·should be signed by a trade union
·ought to be a workplace agreement

I am looking forward to _______from you as sooas possible.
· hear
· be hearing
· hearing
· have heard

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