化学用语是学习化学的重要工具,下列用来表示物质变化的化学用语中,正确的是( )

题型:选择题

问题:

化学用语是学习化学的重要工具,下列用来表示物质变化的化学用语中,正确的是(  )

A.电解饱和食盐水时,阳极的电极反应式为:2Cl+2e=Cl2

B.氢氧燃料电池的负极反应式:O2 + 2H2O+ 4e- ="=" 4OH

C.粗铜精炼时,与电源正极相连的是纯铜,电极反应式为:Cu -2e="=" Cu2+

D.钢铁发生电化学腐蚀的负极反应式:Fe-2e="=" Fe2+

考点:金属的电化学腐蚀
题型:选择题

2007年8月7日,山东省政府颁发《关于加强市场监管维护正常价格秩序的通知》,要求加强市场价格监管,严厉打击个别行业协会和企业组织等相互串通,合谋涨价,极少数经营者制造谣言,哄抬价格等各类扰乱市场价格秩序的不正当价格行为,确保山东省市场价格总水平基本稳定,这一事实表明政府 (   )

A.实行经济调节,进行价格管制

B.加强市场监管,规范市场秩序

C.加强行政干预,提供公共服务

D.维护社会稳定,保持生态平衡

题型:选择题

病历摘要:患者男性,62岁。患胆石症拟行胆囊切除和胆总管探查术。检查发现患有冠心和心绞痛。病人主诉偶有心悸、心跳不规则血压180/110mmHg,脉搏106次/min血生化检查提示:空腹血糖8.0mmol/L,血清钾3.9mmol/L,胆固醇4.6g/L。病人双亲均在50多岁时死于心脏病。

下列哪些因素可加重该病人的心律失常()

A.全麻诱导

B.气管插管

C.低血钾

D.10~15cmHO的气道压

E.麻醉维持中的高血压

题型:选择题
完形填空(共20小题;每小题l分,满分20分)
阅读下面短文,从短文后各题所给的A,B,C,D四个选项中,选出最佳选项,并在答题卡上将该项涂黑.
Last night I was driving from Harrisburg to Lewisburg, a  36 of about eighty miles. It was late and I was in a hurry. However, if anyone asked me how fast I was  37 ,I’d say I was not over-speeding. Several times I got  38 behind a slow-moving truck on a narrow road, and I was holding my fists tightly with  39 .
At one point along an open highway, I  40 a crossroad with a traffic light. I was alone on the road by now, but as I  41 the light, it turned red and I braked to a stop. I looked left, right and behind me. Nothing. Not a car, no suggestion of headlights, but there I sat, waiting for the light to  42 , the only human being for at least a mile in any  43 .
I started  44 why I refused to run the light. I was not afraid of being  45 , because there was obviously no policeman around, and there certainly would have been no  46 in going through it.
Much later that night, after I  47 a group of my friends in Lewisburg and climbed into bed near midnight, the question of why I’d stopped for that light  48 me, I think I stopped because it’s part of a contract(合同) we all have with each other. It’s not only the  49 , but it’s an arrangement we have, and we trust each other to  50 it: we don’t go through red lights. Like most of us, I’m more likely to be  51 from doing something bad by the social convention that  52 it than by any law against it.
It’s amazing that we ever  53 each other to do the right thing, isn’t it? And we do, too, Trust is our  54 preference.
I was so  55 of myself for stopping for the red light that night.
小题1:
A.flightB.distanceC.roadD.length
小题2:
A.thinkingB.drivingC.complainingD.running
小题3:
A.stoppedB.changedC.stuckD.lost
小题4:
A.horrorB.strengthC.understandingD.impatience
小题5:
A.ran offB.came toC.passed byD.left behind
小题6:
A.passedB.watchedC.approachedD.found
小题7:
A.stopB.changeC.turnD.die
小题8:
A.wayB.sideC.cityD.direction
小题9:
A.wonderingB.suspectingC.strugglingD.regretting
小题10:
A.abusedB.finedC.injuredD.killed
小题11:
A.dangerB.signC.timeD.record
小题12:
A.met withB.got overC.got rid ofD.called back
小题13:
A.turned out toB.came back toC.referred toD.occurred to
小题14:
A.virtueB.suggestionC.lawD.order
小题15:
A.honorB.solveC.breakD.judge
小题16:
A.stoppedB.protectedC.rejectedD.frightened
小题17:
A.speaks ofB.stands byC.takes inD.disapproves of
小题18:
A.suspectB.trustC.teachD.care
小题19:
A.onlyB.firstC.luckyD.living
小题20:
A.sorryB.doubtfulC.sureD.proud
题型:选择题

采用雷达仪进行混凝土中钢筋检测时,雷达仪的校准项目及指标要求应对钢筋间距和混凝土保护层厚度()项目进行校准。

A.1个

B.2个

C.3个

D.4个

题型:选择题

由于健康、安全与环境危害的管理在原则和效果上彼此相似,又有联系因此作为一个整体来管理。

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