A.0~0.5跨距點(diǎn)B.0~1跨距點(diǎn)C.0.5~1跨距點(diǎn)D.0.5~1.5跨距點(diǎn)
A.雜波B.幻象波C.缺陷回波D.棱角波
A.雜波B.幻象波C.始波D.棱角波