设上下比降断面间距为L(m),上、下比降断面观测水位为Zu(m)、Zl(m),则水面比降计算公式为
D
暂无解析
________tothepapersisrestrictedtoDefenseDepartmentpersonnelonly.
Tobe____forthecorporateshareholder'sprogram,youmusthavebeenworkinghereforatleastthreeconsecutiveyears.
Theyfulfilledtheplanmuchearlierthanthey_____
Ifyougetyourbanktogenerateamoneyorder,itusually______conversionfees.
设A,B是两随机事件,则事件AB表示()
Hotmetal________asitgrowscooler.
设A,B=,则A与B=()
Hiswifehasbeen_______alotofpressureonhimtochangehisjob.
Theequipment_____outoforder,theexperimenthastobeputoff.
Iknowitisn’timportantbutIcan’thelp________aboutit.