什么是负载测试?什么是性能测试?

测试结束的标准是什么?

试述电气设备停电检修的安全措施是什么?检修完毕后送电前应检查哪些方面?

阶段评审与同行评审的区别。

背景资料：

某写字楼工程，地下1层，地上15层，框架剪力墙结构。首层中厅高12米，施工单位的项目部编制的模板支架施工方案是满堂扣件式钢管脚手架，方案由项目部技术负责人审批后实施。施工中，某工人在中厅高空搭设脚手架时随手将扳白手放在脚手架上，脚手架受振动后扳手从上面滑落，顺着楼板预留洞口(平面尺寸0.25m×0.50m)砸到在地下室施工的王姓工人头部。由于王姓工人认为在室内的楼板下作业没有危险，故没有戴安全帽，被砸成重伤。

问题：

1.分析该起安全事故的原因。

2.写出该模板支架施工方案正确的审批程序。

3.扳手放在脚手架上是否正确?说明理由。

4.何谓“三宝”和“四口”?本例的预留洞口应如何防护?

数据库应用系统功能设计包括哪两个方面?每个方面主要由哪些设计步骤组成?

某乡办煤矿设计年产量3万t，实际年产量6万t.立井开拓，中央边界式通风。该矿矿长和特种作业人员无证上岗。三违现象严重。没有班前会和交接班制度，井下作业任务和人员安排没有统一布置和记录。该矿井下物料及灭火器材存放混乱;一贯使用煤面和煤块封堵炮孔;用电缆明接头放炮的现象时有发生。

该矿煤尘具有爆炸性。井下没有防尘洒水设施，也没有采取防尘措施，造成井下煤尘积存。事发当天，早8时30分停电后，使用柴油发电机向井下送电。由于电力不足，北翼工作面及南翼工作面轮流生产。14时班共下井72人。南翼工作面工人下井后，打眼放第一炮后出煤。巧时30分左右开水泵，停南翼电，当时主扇风机和局扇都没有开启。17时30分全矿来电，主扇和局扇仍没有开启。瓦斯检测员空班漏检。北翼工作面打眼后放第二炮时，工作面口2m处挂在背板上的11个电雷管拖地的引脚线被拖动的电缆明接头接触引爆，引起瓦斯煤尘爆炸事故。共死亡26人，伤10人，直接经济损失38万元(时值)。

问题：

1.试根据上述资料分析这起事故的直接原因和间接原因。

2.根据《安全生产法》提出初步处理建议。

3.提出防止同类事故措施建议。

Directions:Inthispart,therearefouritemswhichyoushouldtranslateintoChinese,eachitemconsistingofonesentence.ThesesentencesarealltakenfromthereadingpassagesyouhavejustreadinPartIIIoftheTestPaper.Youareallowedminutestodothetranslation.Youcanreferbacktothepassagessoastoidentifytheirmeaninginthecontext.WriteyourtranslationontheTranslationSheetinTestPaperTwo.

T1.(Line2-3,Paragraph1,Passage1)

Thiswasbecausebacteriaenteredthecutsinthepatientsbodied’andstartedinfection.

T2.(Line2,Paragraph2,Passage2)

ManywererejectedbyU.S.medicalschoolssimplybecausetherewasnoroom.

T3:.(Line3-4,Paragraph1,Passage3):

Accusedofneglectingthispartofoureducation,myfatherinstitutedasummerschoolformybrotherandme.

T4:.(Line4-5,Paragraph1,Passage4)

Differentculturesaremorepronetocontractcertainillnessesbecauseofthefoodthatischaracteristicinthesecultures.

Thefoodweeatseemstohaveprofoundeffectsonourhealth.Althoughsciencehasmadeenormousstepsinmakingfoodmorefittoeat,ithas,atthesametime,mademanyfoodsunfittoeat.Someresearchhasshownthatperhapseightypercentofcancerisrelatedtothedietaswell,especiallycancerthecolon.Differentculturesaremorepronetocontractcertainillnessesbecauseofthefoodthatischaracteristicinthesecultures.Thatfoodrelatedtollnessisnotanewdiscovery.In1945,governmentresearchersrealizedthatitratesandnitrites,commonlyusedtopreservecolorinmeats,andotherfooddditives,causedcancer.Yet,thesecarcinogenicadditivesremaininourfood,nditbecomesmoredifficultallthetimetoknowwhichthingsonthepackginglabelsofprocessedfoodarehelpfulorharmful.Theadditiveswhichweeatarenotallsodirect.Farmersoftengivepenicillintobeefandpoultry,andbecauseofthis,penicillinhasbeenfoundinthemilkoftreatedcows.Sometimessimilardrugsareadministeredtoanimalsnotformedicinalpurposes,butforfinancialreasons.Thefarmersaresimplytryingtofattentheanimalsinordertoobtainahigherpriceonthemarket.AlthoughtheFoodandDrugAdministration(FDA)hastriedrepeatedlytocontroltheseprocedures,thepracticescontinue.

48.Whatisthemaintopicofthepassage?

A.Foodandourhealth

BFoodandadditives

C.Foodandcancer

DFoodandculture

49AllofthefollowingstatementsaretrueEXCEPT_______.

AFortypercentofcanceriscausedbyproblemsrelatedtofood.

BResearchershaveknownaboutthepotentialdangeroffoodadditivesformanyyears

C.Weeatsomeofthefoodadditivesdirectlyandsomeindirectly

DDrugsarealwaysgiventoanimalsformedicinalpurposes

50.Whydofarmersgivedrugstotheiranimals?

A.tospeedupthegrowthofanimals

BTomaketheanimalsfatter

Ctomaketheanimals’meatfittoeat

DTomaketheanimals’meatrichinnutrients

51.Itcanbeinferredfromthepassagethat_________.

Ascientisthavemadeallthefoodfittoeat

Bonlyinrecentyearshavepeoplefoundthatthefoodisrelatedtoone’sillness

Callkindsofcancerarerelatedtothediet

Dsomeadditivesareharmfultoourhealth

52.Theword“this”inthesecondsentenceofparagraph2mostprobablyrefersto__________.

Afarmer

Bpenicillin

Cbeefandpoultry

Dthefactthatfarmersoftengivepenicillintoabeef

屋面卷材铺贴方向如何确定?