要从细粉粒的矿石原料中提取某种金属,用酸溶液为溶剂,宜选用( )。A.(A) 单级

题型:单项选择题

问题:

要从细粉粒的矿石原料中提取某种金属,用酸溶液为溶剂,宜选用( )。

A.(A) 单级间歇式浸取器

B.(B) 篮式浸取器

C.(C) 浸泡式连续浸取器

D.(D) 巴秋卡槽

考点:注册化工工程师注册化工工程师
题型:单项选择题

卵巢囊肿()

A.CT提示附件区或子宫直肠陷窝处的均一水样密度肿块,呈圆形或椭圆形,边缘光滑,壁薄,无内隔,增强扫描无强化

B.子宫输卵管造影可见宫腔内圆形充盈缺损,大者可致宫腔增大、变形

C.尿路造影输尿管和膀胱受侵,输尿管、肾盂肾盏积水和膀胱壁不规则、僵硬

D.CT提示子宫腔内可见软组织密度肿物,密度低于正常强化的子宫肌,肿瘤呈菜花状或结节状,周围可为更低密度的子宫腔内积液所环绕,也可填充全部子宫腔

E.CT表现为盆腔内水样密度肿块,增强后周边明显环形强化

题型:单项选择题
完型填空(共20小题,每小题1.5分,满分30分)
阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
I didn’t cry when I learned I was the parent of a mentally handicapped (弱智的) child.
“Go ahead and cry,”the doctor __1__ kindly. But I couldn’t cry then nor during the months that followed.
We sent her to a kindergarten in our neighborhood at age seven. I worried that she was the “__2__” child among twenty five­year­olds.
__3__,positive things began to happen to Kristi in her school,and to her schoolmates,too. When talking big of their own accomplishments,Kristi’s classmates always took __4__ to praise her as well,“Kristi got all her spelling words right today.”No one would say that her spelling list was easier than anyone else’s.
During Kristi’s second year in school,she __5__ a very special challenge. The big public event of the term was a __6_ based on the final outcome of the year’s music and physical education activities. Kristi was __7__ in both. My husband and I felt __8__ about the day as well.
On the day of the program,Kristi _9__ to be sick. Desperately I wanted to keep her home. Why let Kristi fail in a gymnasium __10__ with parents,students and teachers?What a simple __11__!But I finally got her onto the school bus.
Just as I had forced my daughter to go to school,now I forced myself to go,too. Then I knew Kristi’s __12__.Her class was divided into relay(接力) teams. With her slow and clumsy reactions,she would surely _13__ her team.
But as Kristi’s turn to __14_ neared,a change took place in her team. The tallest boy in the line stepped __15__ Kristi and placed his hands on her waist. Two other boys stood a little ahead of her. The __16_ the player in front of Kristi stepped from the sack(bag),the two boys seized it and held it open while the tall boy __17__Kristi and dropped her neatly into the sack. A girl ahead took her hand and supported her until she gained her __18__.Then off Kristi hopped (跳跃),smiling and proud.
At the cheers of the crowd,I slipped out to thank Heaven for the warm and considerate people making it possible for my __19__daughter to be like her fellow human beings. Then I finally __20_.
小题1:
A.demandedB.requestedC.advisedD.joked
小题2:
A.commonB.differentC.excellentD.casual
小题3:
A.butB.ThereforeC.EventuallyD.However
小题4:
A.painsB.timeC.effortsD.measures
小题5:
A.failedB.acceptedC.facedD.shared
小题6:
A.competitionB.conclusionC.conferenceD.ceremony
小题7:
A.stupidB.slowC.seriousD.awkward
小题8:
A.annoyedB.anxiousC.guiltyD.tough
小题9:
A.wantedB.happenedC.pretendedD.proved
小题10:
A.filledB.jammedC.coveredD.burdened
小题11:
A.approachB.methodC.keyD.solution
小题12:
A.worryB.disasterC.choiceD.error
小题13:
A.hold onB.hold outC.hold overD.hold up
小题14:
A.participateB.operateC.practiseD.show
小题15:
A.aroundB.offC.behindD.beside
小题16:
A.intervalB.momentC.chanceD.point
小题17:
A.caughtB.liftedC.protectedD.hid
小题18:
A.accessB.positionC.speedD.balance
小题19:
A.nervousB.slimC.disabledD.delicate
小题20:
A.recoveredB.criedC.prayedD.applauded
题型:单项选择题

下列各项中,属于资源税纳税义务人的有( )。

A.进口盐的外贸企业

B.开采原煤的私营企业

C.生产盐的外商投资企业

D.中外合作开采石油的企业

题型:单项选择题

对20世纪30年代经济大萧条的成因,调查研究的结论是,( )在机构、资金操作上的混合是大萧条产生的主要原因。

A.制造业

B.商业银行

C.证券业

D.保险业

题型:单项选择题

某建设工程合同工期为25个月,施工单位编制的双代号网络计划如图2所示。

【问题】 1.该网络计划能否满足合同工期要求为什么为确保工程按期完工,哪些施工过程应作为重点控制对象为什么

2.当该计划执行7个月后,经监理工程师检查发现,施工过程C和施工过程D已完成,而施工过程E将拖后2个月。当计划执行到第7个月后,施工过程E的实际进度是否影响总工期为什么

3.如果实际进度确定影响到总工期,为使工期不延长对原进度计划的调整方案有哪些

4.如果承包商提出采用压缩某些施工过程的持续时间,对原计划进行调整以保证工期不延长。各施工过程的直接费率及最短持续时间如表2所示。在不改变各施工过程逻辑关系的前提下,原进度计划的最优调整方案是什么为什么此时直接费用将增加多少万元

表2

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