A.2h;100ml B.3h;100ml C.4h;100ml D.4h;150ml E.3h;150ml
A.20°-30° B.30°-45° C.45°-60° D.60°-90° E.≥90°
A.2h;20-30ml B.3h;20-30ml C.4h;20-30ml D.2h;30-50ml E.4h;30-50ml