A.(r,+∞)
B.[2r,+∞)
C.
D.
E.
[单选题]A.(r,+∞)B.[2r,+∞)C.D.E.
[单选题]A.B.C.D.E.
[单选题]A.龈乳头炎B.急性多发性龈脓肿C.侵袭性牙周炎D.牙周脓肿E.慢性牙周炎
[判断题]A.对B.错
[单选题]A.B.C.D.
[单选题]A.0.0058B.0.0116C.25D.20
[单选题]A.154B.262C.54D.208