肛门狭窄的处理中,以下哪一项是错误的:() ["肛管直肠扩张术","肛门V-Y成形术","纵切横缝术","注射散结灵","挂线术"]
森林营造的目的是什么?
处理术后尿潴留应用的药物是:() ["普鲁卡因","新斯的明","利多卡因","安体舒通","氢氯噻嗪"]
下列致病因素中,除哪项外,均与肛门直肠疾病有关:() ["风","寒","燥","气虚","血虚"]
鉴别痔疮脱出、脱肛、息肉痔常用的体位是:() ["侧卧位","膝胸位","截石位","倒置位","蹲位"]
简述杨树植苗造林过程中的技术环节。