V模型描述了软件基本的开发过程和测试行为， 描述了不同测试阶段与开发过程各阶段的对应关系。其 V模型描述了软件基本的开发过程和测试行为， 描述了不同测试阶段与开发过程各阶段的对应关系。其中，集成测试阶段对应的开发阶段是（） 。

son given for the merger’s lck of success isdifficulties in integrting the two brnds’ supply chins. B．incresed competition from other supermrket businesses. C．customers’ unwillingness toccept chnges in the stores.A．difficulties in integrating the two brands’ supply chains．B．increased competition from other supermarket businesses．C．customers’ unwillingness to accept changes in the stores．