A.4/3
B.4π/3
C.
D.2π/3
[单选题]A.4/3B.4π/3C.D.2π/3
[单选题]A.2%含肾上腺素普鲁卡因B.2%利多卡因C.2%丁卡因D.2%布比卡因E.2%普鲁卡因
[判断题]A.对B.错
[单选题]A.B.C.D.