根据《中华人民共和国船舶及其有关作业活动污染海洋环境防治管理规定》，海事管理机构收到货物适运申报、船舶适载申报后，应当根据规定的条件在（）内作出批准或者不批准的决定。 24h。 48h。 72h。 7天。
Changes may be requested by any stakeholder involved with the project, but changes can be authorized only by（） executive IT manager。 projectmanger。 change control board。 projectsponsor。
Many useful tools and techniques are used in developing schedule（）is a schedule network analysis technique that modifies the project schedule to account for limited resource. PERT。 Resourceleveling。 Schedulecompression。 Critical chain method。
（）is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes. Method。 Polymorphism。 Inheritance。 Encapsulation。
The strategies for handling risk comprise of two main types: negative risks, and positive risks. The goal ofthe plan is to minimize threats and maximize opportunities. When dealing with negative risks, there are three main response strategies（）,rransfer ,Mitigate. Challenge。 Exploit。 Avoid。 Enhance。
The creation ofa work breakdown structure (WBS) is the process of（）the major project deliverables.
