A--to hold a meeting
B--working party
C--meeting in camera
D--opening sitting
E--final sitting
F--formal sitting
G--plenary meeting
H--study group
I--budget committee
J--drafting committee
K--committee of experts
L--advisory committee
M--board of directors
N--executive council
O--standing body
P--committee ( ) 起草委员会 ( ) 专家委员会