（）involves comparing actual or planned project practices to those of other projects to generate ideas for improvement and to provide a basis by which to measure performance.These other projects can be within the performing organization or outside of it,and can be within the same or in another application area.
该题的关键词为"comparing actual or planned project practices to those of other proj ects"，其语句结构为"（）（主语）involves（谓语）comparing actual or planned project practices to those of other projects"，含义为"什么涉及到将实际或计划的项目实践同其他项目实践比较"，比较项目实践是质量管理方法比较基准（Benchmarking）的主要特征。因而选择选项C。
1、There is actually an overlap of（）ocean
There is actually an overlap of（）ocean regions somewhere in Western European Waters.Aas many as threeBmore than twoCless than twoDup to four
2、This actually makes it harder to dress
This actually makes it harder to dress appropriately, but fortunately most offices also（）a few signals.Asend forBsend offCsend upDsend out
3、The actual rudder angle reading is（）
The actual rudder angle reading is（）Athe rudder angle indicator readingBthe desired rudder angle readingCthe measured rudder angle readingDthe intended rudder angle reading
4、Because the actual center of some plan
Because the actual center of some planets may differ from the observed center，the navigator applies a correction known as the（）.Aphase correctionBrefraction correctionCsemidiameter correctionDaugmentation correctio
5、The southeast trade winds actually blo
The southeast trade winds actually blow toward the（）.ASoutheastBSouthCEastDNorthwest
6、区域卫生规划（regional health plann
区域卫生规划（regionalhealthplanning）