Which of the following statements are true types of types of local consistency for constraint propagation?如下陈述中哪些是约束传播局部一致性的正确类型？

A.Arc consistency弧一致

B.Graph consistency图一致

C.k-consistencyk一致

D.Loop consistency环路一致

E.Node consistency节点一致

F.Path consistency路径一致

G.Tree consistency树一致

正确答案：Arc consistency弧一致；k-consistencyk一致；Node consistency节点一致；Path consistency路径一致