Select the following correct features regarding classical planning.选择如下有关经典规划的正确特征。

A.Fully observable in a dynamic environment.动态环境中完全可观测。

B.Partly observable in a static environment.静态环境中部分可观测。

C.Keeping a nondeterministic action at a time.每次保持不确定性的动作。

D.Keeping a deterministic action at a time.每次保持确定性的动作。

E.One agent with only one known initial state.一个智能体仅有一个已知的初始状态。

F.Several agents with multiple known initial states.若干个智能体具有多个已知的初始状态。

正确答案：Keeping a deterministic action at a time.每次保持确定性的动作。；One agent with only one known initial state.一个智能体仅有一个已知的初始状态。