单项选择题 生产作业控制，是生产计划执行过程中，主要控制有关产品的：()

单项选择题 客户订单和预测、未完成订单、可用物料的数量、现有能力、管理方针和目标等是制定下列哪项计划时必须要考虑的要素：()

单项选择题 CreatingtheLogisticsVisionNowadays,mostcompaniesarefamiliarwiththeideaof"missionstatement"asanexpressionofsettingavisionforthebusiness.Themissionstatementseekstodefinethepur-poseofthebusiness,itsboundariesanditsaspirations.Itisnowcommonfororganizationstohavesuchstatementforthebusinessasawholeandforkeyconstituentcomponents.Whatsomecompanieshavefoundisthattherecanbesignificantbenefitstodefiningthelo-gisticsvisionofthefirm.Thepurposeofthelogisticsvisionstatementistogiveaclearindicationwhichbusinessintendstobuildapositionofadvantagethroughclosercustomerrelationship.Suchstate-mentisnevereasytoconstruct.Thereisalwaysthedangerthattheywillpublishtheener-geticandencouragingdeclarationthatgiveeveryoneawarmfeelingbutprovidenoguidelineforaction.Ideallythelogisticsvisionshouldbebuiltaroundthesimpleissueof"Howdoweintendtouselogisticsandsupplychainmanagementtocreatevalueforourcustomers?"Torealizethisideawillnecessitateadetailedunderstandingofhowcustomervalueiscreatedanddeliv-eredinthemarketinwhichthebusinesscompetes.Valuechainanalysiswillbeafundamen-talelementinthisinvestigationaswillthedefinitionofthecorecompetenciesandcapabilitiesoftheorganization.Askingthequestion"Whatactivitiesdoweexcelin?"and"Whatisitthatdifferentiatesusfromourcompetitors?"isthestartingpointforcreatingthelogisticsvisionstatement.Earlier,itwassuggestedthatthethreewords"Better,Faster,Cheaper"summarizesthewaysinwhichlogisticsvisionstatementcanprovidevalueforcustomers.Thecriterionforgoodlogisticsvisionstatementisthatitshouldprovidetheroadmapforhowthesethreegoalsaretobeachieved．Questions:What kind of goals can mission statement fail to achieve？（）A.Fail to provide realistic guidelines to guide the actions to achieve results.B.Fail to design a goal that everyone agrees.C.Fail to point out a good goal.D.Fail to implement effectively.