A.1/3; B.2/3; C.1/2; D.1/4; E.3/4.
A.2/3; B.1/3; C.1/2; D.1/4; E.3/4.。
A.唇1/3; B.中1/3處; C.舌1/3處; D.舌1/3與中1/3交界處; E.唇1/3與中1/3交界處。