原料变化和工艺条件改变均将引起系统有关()变化。 A.裂解炉的负荷 B.设备的负荷

题型:单项选择题

问题:

原料变化和工艺条件改变均将引起系统有关()变化。

A.裂解炉的负荷

B.设备的负荷

C.压缩机的负荷

D.反应器的负荷

考点:安全生产知识竞赛乙烯安全知识竞赛乙烯安全知识竞赛题库
题型:单项选择题

对开闭所一般缺陷,运行人员在巡视检查运行设备时,一经发现立即详细记入缺陷记录簿中,并及时填写缺陷()卡片。

A.报修

B.临修

C.检修

D.传递

题型:单项选择题

Too many people wander through life like sleepwalkers.Each day they follow familiar routines,never asking,“What am I doing with my life?’’and they don’t know what they’re doing because they lack goals.

Goal-setting is a focusing of the will to move in a certain direction.Begin with a clear conception of what you want.Write down your goals and date them—putting them into words clarifies them.Rather than concentrating on objects to acquire and possess,focus on fulfilling your desires to do,to produce,to contribute—goal-setting that yields the true sense of satisfaction we all need.

It’s important to visualize(想象)yourself accomplishing your goal.While losers visualize the penalties(不利)of failure,winners visualize the rewards of success.I’ve seen it among athletes,statistics contrasting air and highway safety,but it made no difference.I had read too many articles describing crash scenes and imagined these scenes vividly.I had programmed myself,without realizing it,to stay off planes.

Then one summer I had the opportunity to fly on a private plane with friends to a resort;I didn’t want to miss out on a great vacation.So I spent two weeks imagining a smooth flight on a beautiful sunny day and an easy landing.

When the day arrived,I was eager to go.To everyone’s surprise,I got on the plane and I loved every minute of it,and I still use the techniques I employed that day.

小题1:According to the passage,if you want to be successful,the first thing for you to do is         .

A.find the right methods

B.be careful about everything

C.know your ability

D.have a clear goal小题2:If you have a target,you will         .

A.wander like a sleepwalker

B.know well what you are doing

C.do the same work every day

D.put it into words小题3:The problem with the author before he overcame his fear of air travel is that         .

A.he didn’t know air travel is safer than highway travel

B.he couldn’t imagine himself accomplishing his goal

C.he read too much about plane crashes and tried to avoid flying

D.he wanted to take a private plane instead of a public one小题4:What would be the best title for this passage?

A.Define Your Coal

B.Visualize Rewards of Success

C.Overcome The Fear of Air Travel

D.Sleepwalking Through Life

题型:单项选择题

某三跨框架结构,抗震等级为二级,边跨跨度为5.7m,框架梁截面宽250mm,高600mm,柱宽为500mm,纵筋采用HRB335钢,箍筋采用HPB235钢,混凝土强度等级为C30,重力荷载引起的剪力VGb=135.2kN。在重力荷载和地震作用组合下作用于边跨一层梁上的弯矩为:

梁左端:Mmax=210kN·m,-Mmax=-420kN·m

梁右端:Mmax=175kN·m,-Mmax=-360kN·m

梁跨中:Mmax=180kN·m

边跨梁:V=230kN

若采用双肢箍筋,试配置箍筋加密区的箍筋,其与下列()项数值最为接近。

A.φ8@100mm

B.φ12@100mm

C.φ10@100mm

D.φ14@100mm

题型:单项选择题

能表现出该蛋白质特异性的化学基团是在蛋白质的哪个部位上()。

A.肽链

B.主链

C.侧链

D.多肽链

E.以上四种部位都可以

题型:单项选择题

飞机上装有几个静压孔().

A.3个

B.4个

C.5个

D.6个

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