A.60m B.80m C.100m D.120m
A.伸縮縫B.沉降縫C.防震縫D.以上三種
A.1m,2m,5m B.0.001m,0.002m,0.005m C.0.01m,0.02m,0.05m D.0.1m,0.2m,0.5m