同意楼上,像这种简单的组合关系就是依赖的一种体现。所谓依赖倒置,就是说,依赖的B不是直接通过B b=new B();来获取,而是先在工厂里先new好,A什么时候需要用的时候直接去工厂里取就是了。
"①首诉责任制　②投诉不申辩原则　③现场处理原则　④乘客满意原则⑤乘客投诉　“四不放过”原则　⑥投诉回复及时性原则　题目纠错　0　发布　创建题目　创建题库　题目信息:　创建者:　刷刷题用户　编辑次数:　难易度:　错误率:　【单选题】A　well　educated　man　usually　has　a　tolerant　attitude　towards　people　with　different　ideals()　【单选题】Question　8　to　10　are　based　on　the　following　news　item.　At　the　end　of　the　news　item,　you　will　be　given　10　seconds　to　answer　each　question.　Now　listen　to　the　news　Question　8　to　10　are　based　on　the　fol...　【单选题】In　this　section　you　will　hear　everything　ONCE　ONLY.　Listen　carefully　and　then　answer　the　questions　that　follow.　Mark　the　correct　answer　to　each　question　on　your　answer　sheet.　Questions　1　to　5　are　bas...　【单选题】Questions　11　to　18　are　based　on　the　conversation　you　have　just　heard.　【简答题】The　(frighten)()look　of　the　teacher　made　the　pupils　become　silent.　【简答题】How　many　of　us　would　temp　for　three　years　while　we　waited　for　the　perfect　job　Not　many　of　us,　perhaps.　But　Wentworth　Miller,　the　""Prison　Break""　star,　said　he　chose　to　wait　even　longer　time　(1)　he　foun...　【简答题】在考生文件夹下有一个数据库文件“samp3.mdb”,其中存在已经设计好的表对象“tEmployee”、“tSell”、“tBook”和宏对象“m1”,同时还有窗体对象“fBook”和“fEmployee”、子窗体“fSell”。请在此基础上按照以下要求补充“fEmployee”窗体的设计。　设置主窗体标题栏的显示标题为“雇员售书情况”。　【单选题】In　this　section　you　will　hear　everything　ONCE　ONLY.　Listen　carefully　and　then　answer　the　questions　that　follow.　Mark　the　correct　answer　to　each　question　on　your　answer　sheet.　Questions　1　to　5　are　bas...　【简答题】Prof.　Wilson’s　daughter　teaches　at　a　high　school　in　California,　and　she　(occasion)()flies　to　New　York　to　see　him.　【简答题】Although　New　Orleans　has　been　a　part　of　the　United　States　for　almost　two　centuries,　its　population　______　(对…感到自豪)　its　French　heritage.　【简答题】SECTION　A　In　this　section　you　will　hear　a　mini-lecture.　You　will　hear　the　lecture　ONCE　ONLY.　While　listening　to　the　lecture,　take　notes　on　the　important　points.　Your　notes　will　not　be　marked,　but　you　...　客服电话:18911528997　公司地址:　北京市海淀区紫竹院路81号院3号楼2层206-266　"