Yet in its current dour mood, Europe risks almost overlooking the revolutionary step forward it has taken in creating the world’s largest and wealthiest barrier-free market—and on a continent where, for centuries, economic battles have led to some of history’s bloodiest wars. Moreover, a failure to reinforce the single market by pushing forward with European integration could lead to an unraveling of what the internal market program has achieved, some observers say.

下列内容中，属于项目管理实施规划编制要求的是()。

A．由项目经理组织编写，并在组织管理层的监督管理下完成

B．符合合同和项目管理规划大纲的要求

C．各种技术组织措施的规划应立足于本单位的经营管理水平和实际能力

D．在资源需求计划编制前应与供应单位协商，编制后应将计划提交供应单位

E．对项目管理规划大纲有重大的或原则性的修改，应报请企业批准