A.不高于設(shè)計(jì)高程0.3m B.不高于設(shè)計(jì)高程0.5m C.不高于設(shè)計(jì)高程0.8m D.不低于設(shè)計(jì)高程0.3m E.不低于設(shè)計(jì)高程0.5m