A.4-7cm B.7-10cm C.10-15cm D.15-18cm
A.30cm,200ml B.40cm,300ml C.50cm,500ml D.30cm,500ml
A.灌腸筒距肛門40-60cm B.灌腸筒內(nèi)液面距肛門30-50cm C.灌腸筒距肛門30-50cm D.灌腸筒內(nèi)液面距肛門約40-60cm