A.2
B.
C.1
D.
E.
[单选题]A.2B.C.1D.E.
[问答题]
[单选题]A.B.C.D.E.
[单选题]A.90°B.120°C.160°D.180°E.210°
[单选题]A.39.0B.38.5C.38.2D.37.8E.37.5
[单选题]A.肿块B.结节C.脓肿D.硬结E.包块