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1、高等数学（上）学习指导一、选择题1、参考答案：B为使函数在区间内单调增加，则，应满足（）A．且B．且是任意实数C．且D．且是任意实数2、参考答案：A3、参考答案：A4、参考答案：A5、参考答案：D=（）A．B．C．D．6、参考答案：Dwhilethelawnisstillinagreatstageoflifeactivities,comparedwiththeprevioustwoperiods,lawnwaterrequirementsincreaseatthisstage,ifnottimelyirr
2、igation,notonlyaffectthegrowthofgrass,alsocausesyellow.Atthisstage,accordingto4-5ofirrigation.Inshort,grasstypes,waterrequirementsaredifferent,youmustAccordingtotheclimateconditionsandplantspeciestodetermineirrigationofthelawn.Aboutaday,whenirrigationisbe
3、tterdependsonirrigation.Intheory,thesameperiodaslongastheamountofirrigationwaterislessthantheinfiltrationcapacityofthesoil,irrigationallthetimeinaday.Thendependsontheirrigationway.Ifintermittentintermittentsprayorsprayirrigation(highdegreeofatomization),i
4、rrigationisbestwiththeSun.Notonlycanaddmoisture,butalsosignificantlyimprovethemicroclimateandphotosynthesisandtranspirationandgasexchange,facilitatedthecoordinationofwater,air,fertilizerandsoilthermalandvegetativeorgansofrootandrootexpansion,andcouldleadt
5、heentiretransitstorageoftheplantmaterial,breathing,lawnsandlush.Ifusingwater,irrigation,andsoon,shouldbewatchingseason,earlyspring,lateautumnaroundtheheelaswellandtheresttaketwilightasmuch.(2)irrigationirrigationquantityshouldbebasedonthesoil,growing,gras
6、sandotherfactorstodetermine.Generallawngrowingseasondroughtperiod,takesaboutaweektopay20-40mm;vigorouslygrowinglawnintheheatandseveredroughtsituations,needtopay50-60mmperweekormore.InGeneral,regardlessofthemethod,shouldbeirrigatedmorethanonce,eachtimeless
7、water,maximumsurfacerunoffthatjustoccurred.2,fertilizingtomaintainlawndarkgreenleaves,grows,portionsmustbefertilized.Lawnplantsforleafgrowthandblossom-freerequirements,sonitrogenismoreimportant,responsetonitrogenfertilizeristhemostobvious.Shouldbebasicapp
8、lication7、参考答案：B8、参考答案：B函数的一个原函数是（）A．B．C．D．9、参考答案：B10、参考答案：Dwhilethelawnisstillinagreatstageoflifeactivities,comparedwiththeprevioustwoperiods,lawnwaterrequirementsincreaseatthisstage,ifnottimelyirrigation,notonlyaf
