一、填空题1.没有跨省电网的独立省电网内,只设_______调度机构。(三级)2.一般大型汽轮发电机—变压器组采用的“过电压保护”其作用对象是_______。(解列灭磁)3.山东电网的负荷监视机组负责保持电网频率_______运行。(50±0.2赫兹)4.发电厂电压监视控制点值班人员应保持220kV母线电压在_______之间运行。(220—242k)5.装机容量在3000MW及以下的电力系统,频率偏差超出50±0.5赫兹,且延续时间30分钟以上者为_______电网事...
井下放炮员试题一、填空题:1、煤层顶板自上而下分为________、________和__________。2、炸药的爆炸反应三要素是_______、_______和__________。3、炸药爆炸后,除在装药处形成扩大的空隙外,还会形成_________、__________、和____________三个区。4、炮采工作面的炮眼按位置不同可分为______、______和_____。5、掘进工作面的炮眼按用途分和位置的不同,可分为____、______和_________。6、掘进工作面常用的斜眼掏槽方式可分...
01一.用适当的单词填空:1.Welcome______China.2.What’sthematter_______yourwatch?3.TheweatherinBeijingisdifferent____thatofNanjing.4.Histrousersarethesame_____mine.5.Mr.Wangisveryfriendly_______us.6.Myfathermadeakite_______me.7.Whatdoyoumean_______doingthat?8.I’dlikeyoutostay_______metonight.9.Hisschoolisfar_______hishome.10.Thehospitalisnear_____thepostoffice.11.Wealldowell_______swimming.12.Th...
have和has的用法have和has知识讲解(1)have、has的意思为:有(2)has是have的第三人称单数形式(3)用法:have:跟I、we、you、they以及复数名词搭配使用。has:跟he、she、it、单数名词、不可数名词搭配使用。例如:Ihaveanapple.(我有一个苹果。)Shehasabanana.(她有一个香蕉。)(4)have、has与therebe句型的比较:两者都有“有”的意思,have、has表示“某人拥有什么”,therebe表示“某地有某人(某物)”例如:Theyhaveso...
习题演练1.I____acat.2.He____adog.3.She____longhair.4.We____abighouse.5.They____ahappyfamily.6.It____ashorttail.7.You____agoodteacher.8.Elva____twobigeyes.9.Tom____aredpen.10.Mymother____abeautifulnose.11.Cats____fourlegs.12.Dogs____(have)twoears.13.Myfather____abluecar.14.Everybody____twohands.15.I____apet.16.Lily____(have)adoll.17.Students____(have)manybooks.18.Girls____(have)manyskirts.19.The...
写音标1、写出20个元音①写出12个单元音(2)________(3)________(5)________(6)________(1)________(8)________(9)________(4)________(11)________(12)________(7)________(10)________(3)________(6)________②写出8个双元音(2)________(5)________(3)________(1)________(8)________(6)________(4)________(9)________(7)________(3)________2、写出28个辅音(6)________(...
一、填空1、(辊压机终粉磨)生料工艺目前已成为能耗更低的生料制备工艺。2、管磨机粉磨水泥的(颗粒级配)优势在当前是处于绝对的主导地位。3、目前我们正朝着“水泥生产(无球化)”方向发展。4、在我国占主要地位的水泥粉磨设备仍然是(管机)。5、辊压机的基本工作原理是(挤压粉磨)。6、在水泥的使用中,对水泥的(均衡稳定)既是基本要求、也是最高要求。7、水泥质量可以通过(化学指标)和(物理指标)加以控制和评定。8、混合材料分为(...
1.My________(学生)likemeandIlikethem.2.JimandDavidaremy___________(同班同学).3.Thesearemyfriends.___________(他们的)namesareHanMeiandWeiHua.4.IsJimKates___________(兄弟)?5.Thoseare_________(香蕉).6.Theseare___________(桔子).7.Thesetwo___________(妇女)aremyteachers.8.Is___________(每人)heretoday?9.Thatsmybird,______________(它的)nameisPolly.10.WhatsthisinEnglish?Itsa__________(钟).11.Thatsnotyou...
一、单选题1.Ifit_______raintomorrow,we_______gohiking.A.dont,willB.wont,areC.wont,willD.doesnt,will2.Wemusthurryup.Thelasttrain___________in10minutes.A.isleavingB.leavesC.isabouttoleaveD.left3.—There__________abasketballmatchinourschoolnextSunday.—Really?Thatsnewtome.A.isgoingtohaveB.isgoingtobeC.willhaveD.willtobe4.Sir,couldyoupleasetakeyourseat?Theplane.A.takesoffB.hastake...
一、单选题1.Ibelieveinhim.Heistheonlyperson________canhelpmeoutoftrouble.A.whichB.whoC.whoseD./2.Thefirstplace______theyvisitedinLondonisBigBen.A.whoB.whichC.whatD.that3.—Haveyoufoundtheinformationaboutfamousscientists________youcanuseforthereport?—Notyet.IllsearchsomeontheInternet.A.whichB.whoC.what4.Adoctorisaperson________looksafterpeopleshealth.A.whichB.whoseC.howD.who5...