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下列肥料属于复合肥料的是（ ）
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下列哪些肥料可满足水肥一体化对肥料的要求
复合肥料
复混肥料
掺合肥料
BB肥
复合肥料是指含有肥料三要素两种以上成分的化学肥料下列肥料中属于复合肥料
硫铵
碳铵
硝铵
磷酸二氢钾
何为复混肥料复合肥料有哪些优点
复合肥料的类型
什么是复合肥料复合肥料有哪些类型
与单质肥料相比复合肥料的优缺点有哪些
复合肥料能为农作物提供多种营养元素下列肥料中属于复合肥料的是
(NH
4
)
2
SO
4
KNO
3
Ca
3
(PO
4
)
2
KCl
复合肥料能为农作物提供多种营养元素下列化肥中属于复合肥料的是
NH
4
Cl
KNO
3
KCl
Ca
3
(PO
4
)
2
复合肥料复混肥料
复合肥料能为农作物提供多种营养元素下列肥料中属于复合肥料的是
NH
4
Cl
KNO
3
KCl
Ca
2
(PO
4
)
3
__________是复合肥料
下列常见化学肥料中为复合肥料.
某复合肥料的养分表达式为15-15-10则表示这种复合肥料含钾__________总养分 为____
复合肥料
下列肥料属于复合肥料的是
NH4NO3
KNO3
KCl
Ca(H2PO4)2
专用型复合肥料是针对__________的养分特点而配方生产的三元复合肥料的 养分总量不得低于___
某农作物缺乏多种营养元素需要施加复合肥料下列属于复合肥料的是
KCl
CO(NH
2
)
2
KNO
3
Ca(H
2
PO
4
)
2
复合肥料能为农作物提供多种营养元素下列肥料中属于复合肥料的是
Ca(H
2
PO
4
)
2
NH
4
H
2
PO
4
CO(NH
2
)
2
KCl
复合肥料包括复混肥料和混合肥料
几种单质肥料混合而成的肥料不能称为复合肥料
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如表中对部分化学知识归纳总结完全正确的是
下列有关量的变化图象与其对应叙述不相符的是
某兴趣小组为了测定某稀盐酸的浓度取15g石灰石放在烧杯中然后向其中逐渐加入200g稀盐酸杂质不与稀盐酸反应测得数据关系如图所示试计算计算结果保留1位小数 1加入200g盐酸后溶液中所含有的离子是填离子符号 2计算该稀盐酸中溶质的质量分数．
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如图所示天平两端烧杯中各放入等质量的溶液后天平处于平衡状态向两个烧杯中分别加入等质量的不同试剂后天平仍然平衡的是
8分Danielneededanewcarburetorforhiscar.Wellnotanewone.Anewonewouldcostatleast﹩250.Evenarebuiltonewouldcostabout﹩110.Thecheapestthingtodowastogotoasalvageyard. Californiahasabout50salvageyards.MostofthemareinsouthernCalifornia.Theyardsrangeinsizefrom10acresto70acresholdinganywherefrom300to3000abandonedwreckedorcheaplysoldcars.Theyardsareusuallylocatedoutsideofdowntownbutnearafreewayramp. Asalvageyardmightpayyouupto﹩200totakeyourrundowncaroffyourhands.Beforetheyplaceitintheyardhowevertheywillremoveallitsliquids﹣oilgascoolantbrakefluidtransmissionfluidpowersteeringfluidandwindshieldwashersolvent.Vehiclesusuallysitintheyardforonlyamonthbeforetheyarecrushedstackedandthentransportedtoarecycler. Vehiclepartsareinexpensivebutyouhavetoremovethemyourself.ThecarburetorthatDanielneededwasonly﹩20.Nothingintheyardhowevercomeswithaguarantee.Ifitdoesn'tworkorfityoucanreplaceitwithasimilaritembutyouwon'tgetyourmoneyback. Danielborrowedhisbrother'scar.Afterpayingthe﹩3entryfeetothemaninthelittlewoodenshackDanielwalkedintotheyard.Hewalkedaboutfiveminutesbeforehefoundtheforeigncarsection.Itlookedliketherewereatleast200cars.Itwassunnyandhot.Therewasnoshadeanywhereintheyard.CarryinghistoolboxDanielwentsearchingforamatchingcarburetor. AlmostthreehourslaterDanielwasbackattheshack.Heboughthimselfacoldsodafromamachine.Afewminuteslaterhepaidthe﹩20plustaxandwalkedoutoftheyard.Drivinghomehewonderedifalltheworkwasworththesavings.Ifthecarburetordidn'tworkhe'dhavetodothisalloveragain. WhenhegothomehisbrotherMontywasstandingnexttoDaniel'scar.Montyhadabigsmileonhisface.Heyguesswhat?Itwasn'tyourcarburetor.Itwasthefuelfilter.Ichangeditandyourcarrunsgreatnow. 1WhatkindofcarburetordidDanielneed? A.anewone B.oneremovedfromarundowncar C.asecond﹣handone D.arebuiltone 2What'sasalvageyard? A.Itisawasterecyclingstation. B.Itisagarage C.Itisasecond﹣handcarshop D.Itisaparkinglot. 3Whytheliquidsinthecarwillberemovedinthesalvageyard? A.Becausetheliquidsareoverused. B.Becausetheliquidsarepoisonous C.Becausetheliquidswillberecycled. D.Becausetheliquidsmaycatchfirewhenthecarcrushed 4What'swrongwithDaniel'scar? A.thecarwastoooldtoberepaired. B.itscarburetordidn'twork. C.itsfuelfilterdidn'twork. D.thecarwasshortoffuel.
海洋蕴藏着丰富的自然资源工业上可利用海水中的氯化镁来制取金属镁其简化后的流程如图所示 海水氢氧化镁氯化镁镁 请回答下列问题 1操作1的名称是． 2熟石灰与海水混合发生反应的化学方程式为． 3试剂X为．
如图是教案备课库一些基础实验的相关图示请回答下列问题 1实验室常选择①②③作为制取CO2的发生装置该装置的优点是只能选择⑤作为CO2收集装置的原因是． 2图二中利用⑥所示装置集气瓶中预先装满CO2气体来验证CO2与NaOH的反应先加入过量氢氧化钠溶液观察到的现象是气球变大反应方程式为再加入足量盐酸观察到的现象是有气泡产生且气球变小即可证明CO2可与NaOH发生反应． 3图三实验操作中均缺少的仪器名称是．
在①合金黄铁矿石油乙醇②N2C60MgO3③Al2O3Fe3O4CuOSiO2．三组物质中每组有一种物质在分类上与其他物质不同这三种物质分别是
8分WhenreaderstalkaboutfamousBritishwriterAgathaChristieitseemsthatherfamousdetectivenovelsfeaturingHerculePoirotandMissMarplearemust﹣reads.Soofcourseareherbest﹣sellingnovelsMurderontheOrientExpressandDeathontheNile. ButwhenreadersaroundtheworldwereaskedtonametheirfavoriteChristienoveltomarkher125thbirthdayinSeptemberAndThenThereWereNonetoppedthelistreportedTheGuardian.AndtheBBCTVadaptationofthenovelwillpremiereonDec26. Itmaysurpriseyoutolearnthatitisacrimenovelwithoutadetective.Whatitdoeshaveissuspenseandaveryevilatmosphere. Inthestoryagroupof10peoplegetsaninvitationtocometoahouseonasmallislandnearDevoninSouthWestEngland.Nobodyrefusestheseinvitationssinceeachonepromisessomethingthepersonwantsajobaholidayachancetomeetupagainwithanoldfriend. Thesepeopleareallresponsiblefordeaths.Somearedirectlyresponsibleothersareresponsiblebecauseofwhattheydidnotdo.AnthonyJamesMarstonforinstancekilledtwochildrenwhiledrivingdangerously.Hedidnotfeelguiltyandactuallycomplainedwhenhewasbannedfromdriving.AnotherEmilyCarolineBrentisaharshpersonwhothrewoutayoungservantforbecomingpregnantwhileunmarried.Theservantlaterkilledherself. Whentheyarriveatthehousetheyareplayedarecording.Thevoicegivesdetailsofthewrongdoingofeachoftheguests.StartingwithMarstoneachiskilledinawaythatfitshisorhercrime.Theseriesofdeathsiscompletedwithahangingandthentherewerenoneasthetitlesuggests. SomeofChristie'sworkshaveapredictableendingbutthisbookisfullofcleverwriting.LookituptofindoutwhatthishugelysuccessfulmysterywritertheQueenofCrimeasshewascalledcoulddoatherbest. 1WhydoreaderslikeAndThenThereWereNonebest? A.BecauseitwasadaptedbyBBCTV. B.Becauseitisabout10peoplewhoareresponsiblefordeath. C.Becauseitisacrimenovel. D.Becauseitisabookfullofcleverwriting. 2WhichoffollowingisTRUEaboutthenovelAndThenThereWereNone? A.Tenpeopleinthenoveldeservetobekilled. B.Tenguestskilledonasmallislandareinnocent. C.Thepeopleinthenovelarealldirectlyresponsiblefordeaths. D.EmilyCarolineBrentkilledaservantbythrowingheroutofwindow. 3What'sQueenofCrime? A.anovel B.acriminal C.anickname D.aleader 4HowmanyAgathaChristie'sworksarementionedinthearticle? A.four B.five C.six D.seven
10分假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错的词下划一横线并在该词下面写出修改后的词. 注意 1.每处错误及其修改均仅限一词; 2.只允许修改10处多者从第11处起不计分. Hearingyou'reworriedthecomingexamIcanquiteunderstandyoubecausewe'reinthesameboat.ButIthinkwecandealwithitproperlyandmysuggestionareasfollows. Firstofallit'snormalforustobenervoustillfacedwiththeexamwhichwethinkisimportant.Secondlywe'dbettertryourbesttostudyhardandbuiltasolidfoundationandthenwe'llfeelconfidenceofwinningbythen.Thirdlynomatterhowwefelttheexamisstillapproaching.Sowhynottofaceitbravely?Afterallitisourlearningprocesswhichreallydeterminesoursuccess.Ifwealwayssparenoeffortonyourstudiesthereisnoneedtoworrybecausewe'vedoneallweshould.Sopleasestaycalmandrelaxing.Ihopemysuggestionswillbeofhelptoyou.
中和反应在工农业生产中应用广泛现将溶质质量分数为10%的氢氧化钠溶液滴加到60g稀硫酸中测得溶液pH与加入的氢氧化钠溶液的质量关系如图所示． 1加入NaOH溶液质量为b克时所得溶液中的溶质为． 2求恰好完全反应时所得溶液中溶质的质量分数．
化学实验中处处表现出颜色变化美下列化学实验中的颜色变化不符合实验事实的是
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