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1、数学学科教学质量监控测试题（时间90分钟，满分100分）题号一二三四五总分得分考生注意：1．本试卷含五个大题，共28题；2．除第一、二大题外，其余各题如无特别说明，都必须写出解题的主要步骤．得分评卷一、选择题（本大题共6题，每题3分，满分18分）[下列各题的四个选项中，有且只有一个选项是正确的，选择正确项的代号写在括号内．]1．2的倒数是………………………………………………………………………………（）A．；B．；C．；D．2．2．小杰家的冰箱冷藏室温度是5℃，冷冻室的温度是-2℃，则他家冰箱冷藏室温度比冷冻室温度高……………………………………………………………………………………（）Ａ.
2、3℃；Ｂ．-3℃；Ｃ．7℃；Ｄ．-7℃．3．不等式的解集在数轴上表示出来正确的是……………………………（）-2-10123A.●-2-10123B.○012345C.●012345D.○4．已知是方程的一个解，那么的值是…………………………（）A．1；B．3；C．－3；D．－1．5．如图1，已知点C是线段AB的中点，点D是CB的中点，那么下列结论中错误的是…（）●●●●ACDBA．；B．；（图1）C．；D．．6．下列说法中，正确的是…………………………………………………………………（）A．联结两点的线段叫做两点之间的距离；shouldbetightened,noloose,Termin
3、alBoardwiringshouldbeoneoneachside,nomorethantwo.J,shieldedwire,sparewirebindingorder,reliablegrounding.7.7qualitystandard7.7.lcablesthroughthecableembeddedtubemakinguseofgalvanizedsteelpipe,tubeendswithoutburrs,smooth.7.7.2pipedoesnotallowbending,bendingthebendradiusshouldbe≥4timestimestheouter
4、diameterofthetubein.7.7.3ellipticityofabenttube,pipediameter≤60mm,not>8%,diameter>760mm,not>6%.7.7.4makingcablesburiedpipingapplicationrootproduction,growingwhereinterfaceisrequired,onlystraightpipe,onlythewireportconnections,weldedconnectionsarenotallowed.7.7.5servicesleeveshouldhaveagoodground
5、ing.7.7.6cabletraysinstallation,burrsanddirtandcorrosiontreatmentshouldbecarriedout,installthebridge...7.8.1.7pipingandpiping,equipmentandequipmentorpipingandotherequipmentshallhavesufficientexpansiongapinhotsituations.7.8.1.8metaltemperatureoftheinsulatinglayer(hot)=shell-walltemperatureofenvir
6、onmenttemperature≤40°c.7.8.2paint7.8.2.lpaintofequipmentandpipelinesshouldhaveatleastaprimer(redpaint)andfinish.7.8.2.2paintappearancecoloruniform,withoutpaint,rust,flaking,wrinkles,flowmarks,scum,paintparticlesandvisiblebrushmarks.7.8.2.3interlayershouldbetightandwithoutstratification.7.8.2.4pi
7、pelinesasphalt,fiberglassfabriccorrosion,externalappearanceshouldnevershowsurroundedbyglassfiberclothuniform,dense,paintedpitchinspectionshouldbenodelamination,cavitation,homogeneityofasphaltcoating,brushingeachlayerthicknes
