问答题
CAI CHUNLONG, 28 , found a job after graduating from college , doing marketing for a company in Beijing. Last September , when he saw in the Chilla Youth News a notice recruiting volunteers to go to p
A.A.
B.B.
C.C.
D.D.
E.13.
F.B.
G.D.
H.14.
I.A.
J.A.
K.B.
L.C.
M.D.
N.17.
O.A.
P.A.
Q.A.
R.A.
