Which two of the following are the imposed restrictions to production redeployment in WebLogic Server ？（） [" Can’t cahnge application’s deployment targets"," Can’t cahnge application’s security model"," Can’t cahnge application’s node manager"," Can’t cahnge application’s persistent store setting"]
Which scenario describes an appropriate use for opening a form in a new session?（） ["The data entered into the called form is logically independent of the data entered in the calling form. ","The called form requires different privileges than the calling form. ","The called form must execute as a different user than the calling form. ","The calling form must be able to query data in the called form before it is saved."]
往复式压缩机的气阀阀座密封面，如有较严重的伤痕，应先采用车削的方法，然后用手工研 磨的方法来修理。
请简述20世纪末叶中国文学各阶段文学的主要特征。
工具用具使用费是指企业施工生产和管理使用的不属于固定资产的工具、器具、家具、交通工具和检验、试验、测绘、消防用具等的购置、维修和（）。 ["使用费","摊销费","残值","折旧费"]
常用的行道树
