建设工程项目施工作业质量自控的有效制度不包括（）。
A．质量信息管理制度
B．质量例会制度
C．质量挂牌制度
D．质量样板制度
参考答案：A
English for more than six years, he can speak and work very well with that businessman from England.
A．To have learned
B．To learn
C．Learning
D．Having learned
