whAt DoEs thE worD "ADvAnCED" (sEntEnCE 2, pArA.4) rEFEr to
A) improvED. C) progrEssED.
B) gEtting olD. D) ComplEx.
A．whAt DoEs thE worD "ADvAnCED" (sEntEnCE 2, pArA.4) rEFEr to
B．improvED.
C．gEtting olD.
D．progrEssED.
E．ComplEx.