背景材料：
某安装公司通过招标承接到某装置外系统工程(不包括设备、电仪等工程)的施工合同，合同工期200天，开工前安装公司向承包商提交了施工方案和施工网络计划。
施工方案：按专业施工顺序组织施工。
劳动组织：专业施工队。
物资供应：材料供货满足施工要求，脚手架随用随调。
(1)当工程进行了1个月时，将实际进度与网络计划进行比较发现，钢管架预制拖后5天。
(2)当工程进行了5个月时，又将实际进度与网络计划进行比较发现，工艺管线安装拖后20天。
双代号网络图如下：
问题：
实际进度与计划进度如何进行比较？

A. Most native English speakers are lazy about learning foreign languages.
B. English is the most common language in the European district of Brussels.
C. France spends less money on language teaching in schools than Switzerland.
D. Most Dutch people speak German.
E. Most companies in Brussels have lost contracts due to a lack of languages among employees.
F. There are many Dutch speakers in Brussels during the day.
G. Unemployment is relatively low in Zaventem.
H. The use of Dutch in Brussels has increased since the end of World war 2.