A.①②
B.③④
C.②③
D.②④
[单选题]A.①②B.③④C.②③D.②④
[单选题]A.立即再植固定,定期观察B.脱落牙牙髓治疗后,复位再植固定C.复位固定4周后,牙髓治疗D.嘱患者伤口愈合后修复E.立即修复
[单选题]A.(0,1/2)B.(0,1/2]C.(1/2,+∞)D.(0,+∞)E.A、B、C、D均不正确
[单选题]A.B.C.D.E.A、B、C、D都不正确
[单选题]A.1B.C.D.-1E.
[单选题]A.OB.1C.2D.∞
[单选题]A.OB.1C.2D.∞
[单选题]A.9/16B.11/16C.3/4D.9/8E.9/4
[单选题]A.(0,1/2)B.(0,1/2]C.(1/2,+∞)D.(0,+∞)E.A、B、C、D均不正确
[单选题]A.9/16B.11/16C.3/4D.9/8E.9/4