[单选,共用题干题]

(1) is a method of constructing a project schedule network diagram that uses boxes or rectangles, referred to as nodes, to represent activities and connects them with arrows that show the dependencies.This method includes following types of dependencies or precedence relationships: (2) the initiation of the successor activity, depends upon the completion ofthe predecessor activity.(3) the initiation ofthe successor activity, depends upon the initiation ofthe predecessor activity.

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Estimating schedule activity costs involves developing an (1) of the cost of theresources needed to complete each schedule activity. Cost estimating includes identifying and considering various costing alternatives. for example, in most application areas, additionalwork during a design phase is widely held to have the potential for reducing the cost of the execution phase and product operations. the cost estimating process considers whether the expected savings can offset the cost of the additional design work. cost estimates are generally expressed in units of (2) to facilitate comparisons both within and across projects.the (3) describes important information about project requirement that is considered during cost estimating.空白（1）处填（） A.accuracy。 approximation。 specification。 summary。 (1) is a method of constructing a project schedule network diagram that uses boxes or rectangles, referred to as nodes, to represent activities and connects them with arrows that show the dependencies.This method includes following types of dependencies or precedence relationships: (2) the initiation of the successor activity, depends upon the completion ofthe predecessor activity.(3) the initiation ofthe successor activity, depends upon the initiation ofthe predecessor activity.空白（3）处填（） A.F-S。 F-F。 S-F。 S-S。 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》，船舶和燃油供给单位应当将燃油供受单证保存（）年，将燃油样品妥善保存1年。 3。 2。 1。 5。 An example of scope verification is （）. review the performance ofan installed software module。 managing changes to the project schedule。 decomposing the WBS to a work package level。 performing a benefit/cost analysis to determine if we should proceed with the project。 The TCP protocolis a （）layer protocol. physical。 network。 transport。 application。

(1) is a method of constructing a project schedule network diagram that uses boxes or rectangles, referred to as nodes, to represent activities and connects them with arrows that show the dependencies.This method includes following types of dependencies or precedence relationships: (2) the initiation of the successor activity, depends upon the completion ofthe predecessor activity.(3) the initiation ofthe successor activity, depends upon the initiation ofthe predecessor activity.

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