依次填入下面一段文字横线处的语句，衔接最恰当的一项是[ ]

　　遍布华夏的古村落，作为乡土建筑的精华，_______，________，_______，________，________，_______，承载着丰富的历史文化信息，对中国人的价值观念、生活方式的形成产生过深刻的影响。

①却辉映着辉煌的过去

②鲜明地折射出中国悠久的历史

③具有很高的文物价值

④它们看似陈旧

⑤生动地展现着民族文化的丰富多样

⑥成为了解中国文化和历史的一个重要窗口

A．④①③⑥②⑤

B．②⑤⑥①④③

C．③⑤②⑥④①

D．⑥④①③②⑤

Risk management helps in maximizing the probability and consequences of positive events and minimizing the probability and consequences of adverse events to project objectives．Risk response planning helps in this context because it______．

A．helps in deciding how to approach and plan the risk management activities

B．develops procedures and techniques to enhance opportunities and reduce threats to project objectives

C．determines which risks might affect the project and documents their characteristics

D．monitors residual risks，identifies new risks and executes risk reduction plans