A.編為偶數(shù)由大到小 B.編為奇數(shù)由大到小 C.編為偶數(shù)由小到大 D.編為奇數(shù)由小到大
A.0.2-0.5s B.0.5-0.8s C.0.8-1s D.1-1.2s