夜色资源站www国产在线资源,国产偷窥熟妇高潮呻吟,潮湿的心动漫在线观看免费未删减,欧美日韩国产成人精品

當(dāng)前位置:考試網(wǎng)  > 試卷庫  > 技能鑒定  > 其他類  > 傾斜井巷中使用的帶式輸送機(jī),上運(yùn)時,必須裝設(shè)();下運(yùn)時,應(yīng)當(dāng)裝設(shè)()且必須裝設(shè)()
試題預(yù)覽

傾斜井巷中使用的帶式輸送機(jī),上運(yùn)時,必須裝設(shè)();下運(yùn)時,應(yīng)當(dāng)裝設(shè)()且必須裝設(shè)()

查看答案
收藏
糾錯
正確答案:

防逆轉(zhuǎn)裝置和制動裝置、軟制動裝置、防超速保護(hù)裝置

答案解析:

暫無解析

你可能感興趣的試題

教練員在場外有不正當(dāng)行為,裁判員可對其警告,但不必出示黃牌。

正規(guī)足球比賽每隊至少有十一人上場,否則不得開始比賽。

太級一章在開始時不需敬禮,僅在品式結(jié)束后向觀眾或考核人員敬禮()

拳的握法是:五指伸開,拇指之外四指向里屈曲卷握,拇指緊壓于食、中指()上

足球比賽中,每隊上場人數(shù)最少應(yīng)為7人

熱門試題 更多>
試題分類: 現(xiàn)代英語語法
練習(xí)次數(shù):0次
試題分類: 內(nèi)科護(hù)理學(xué)(一)
練習(xí)次數(shù):0次
試題分類: 外語教學(xué)法
練習(xí)次數(shù):0次
試題分類: 中醫(yī)護(hù)理學(xué)基礎(chǔ)
練習(xí)次數(shù):6次
Withouttransportation,therecouldbenotrade.Withouttrade,therecouldbenotownsandcities.Townsandcities aretraditionallythe___16___ofcivilization.Therefore,transportationhelpsmakecivilization___17___. Throughoutmostoftheprehistoricperiod,peoplelivedbyhunting,fishing,and___18___wildplants.They hadnobeastsofburden,wheeledvehicles,orroads.Peopletraveled___19___andcarriedtheirinfantsand belongingsstrappedtotheirbacksorheads.Loadstooheavyforonepersontocarrywerestrappedtoapoleandcarriedbytwopeople. ___20___,peoplelearnedthattheycoulddragloadsalongthegroundonsledges.Duringlateprehistoric times,peoplebegantobuildsledgeswithrunners. Whenpeopledevelopedagricultureandbegantoestablish___21___settlements,tradebetweensettlements startedtodevelop,whichcreatedaneedforbetter___22___oftransportation.Thedonkeyandtheox,whichhad beentamedforfoodproductsandfarmwork,helped___23___thisneed.Theuseofdonkeysandoxenasbeastsof burdenenabledpeopleto___24___heavierloadsthantheycouldbefore. Peoplealsobegantodevelopwatertransportationduringprehistorictimes.Theybuiltraftsofsuch__25____aslogs orreeds.Later,peoplelearned___26___tomakedugoutsandcanoes.Peoplepaddledtheseearlycraftwiththeirhands orpropelledthemwithpaddlesor__27____. Thewheelwasinventedabout3500B.C.andsailboatabout3200B.C.Wheeledvehiclesandsailingvessels___28___transportation.Butthespeedoftransportationimprovedonly___29___overthecenturies.Inventorsproducedthefirstengine-___30___vehiclesduringthelate1700’sandtheearly1800’s.This developmentmarkedthebeginningofarevolutionintransportationthathascontinuedtothepresent. 16.A.highlightsB.pinpointsC.headquartersD.centers 17.A.possibleB.acceptableC.practicalD.typical 18.A.growingB.gatheringC.wateringD.moving 19.A.inturnB.ateaseC.onfootD.forfun 20.A.AllthewhileB.ForawhileC.IntimeD.Ontime 21.A.temporaryB.permanentC.regularD.steady 22A.knowledgeB.judgmentC.standardsD.means 23.A.recognizeB.developC.meetD.reduce 24.A.bearB.moveC.shareD.lift 25.A.materialsB.stylesC.itemsD.types 26.A.whereB.whenC.howD.as 27.A.polesB.sailsC.currentsD.winds 28.A.demonstratedB.revolutionizedC.witnessedD.initiated 29.A.considerablyB.continuouslyC.swiftlyD.slightly 30.A.poweredB.controlledC.orientedD.related
試題分類: 綜合英語(二)
練習(xí)次數(shù):0次
試題分類: 兒科護(hù)理學(xué)(二)
練習(xí)次數(shù):0次
試題分類: 兒科護(hù)理學(xué)(二)
練習(xí)次數(shù):9次
試題分類: 預(yù)防醫(yī)學(xué)(二)
練習(xí)次數(shù):0次
試題分類: 社區(qū)護(hù)理學(xué)(一)
練習(xí)次數(shù):2次
掃一掃,手機(jī)做題