One tool that is useful during both analysis and design is the ______，which is a pictorial representation of the items of infonnation(entities)within the system and the relationships between these pieces of information．

单项选择题The connection between two networks to form an internet is handled by a machine known as a ______．

单项选择题项目协调的监理方法主要包括______。 ①监理会议 ②监理报告 ③沟通 ④评审

单项选择题从监理的角度来分类，以下不属于监理总控类文档的是______。

单项选择题以下不属于沟通协调一般原则的是______。

单项选择题监理大纲是监理单位为了获得监理任务而编制的方案性文件，其应由______批准。