工作分解结构的编号系统可以使项目员工：
A、估算WBS元素的成本C
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Hehadalongtelephone( ).
Someconceptsmaybedifficulttograspchieflybecausetheymaybeunfamiliaror_____ideas,opinionswhichwealreadyhold.
Browsing______theclassifiedadsandapplyingforeveryjobyoufindisnotenough.
Doyouknowthenameofthat_____insect?
Let'sgoswimming,_______?
