前尿道损伤尿外渗部位是() ["膀胱周围","会阴浅袋","会阴深袋","阴茎部","阴囊部"]
骨盆骨折最易损伤的尿道部位是() ["阴茎悬垂部","球部尿道","膜部尿道","前列腺部尿道","膀胱颈部"]
锥度符号的方向应与锥度方向()。
钢丝绳用绳卡连接时,绳卡压板应在钢丝绳()一边。
男,4岁。摔伤致右股骨干中段横形骨折,骨折端重叠移位,治疗方法首选() ["垂直悬吊皮肤牵引","手法复位小夹板固定","手法复位小夹板固定加皮肤牵引","切开复位内固定","手法复位骨牵引"]
当卷扬处于工作最低点时,钢丝绳在卷筒上缠绕圈数,除去固定绳尾的圈数,必须不少于圈。