îI(y)WWl
ܶڂ俼֮ǰ@ôЧи ʲô䌍и ˶߀Ҫ(j) ̶MДࡣîI(y)WW͞Ҿwһ^Чи
ٜʂи ijڣ_ʼʹTPOôoɆˏ·^һֱʹlongmanԼDeltaôҲ±^Ȼܶ˾@ô
ʂиԇ^ܶԕrg錧QԒfҲǣԼһҪ13»6֮ȿ100Ǿ҂ÿ˶ƽһܶr@ôС䌍҂ԓѭ^Ҏ(gu)ɣ҂Ҫ֪WһѭuM^κΌ@Ҏ(gu)ɵƉnj҂^ȥÿһ犵ҕ
Чʵи ԓ@ӵģ
1 ㌦и ȫ ôVOA^һҪ IJȻǘ˜ٶVOAиPart CTPO
2 и __40%ôhĘ˜ٶVOAиPart C_ʼȻһ·TPO
3 Ȼ_ѽ_60-80%ôȲҪHҲҪmȻ߀һ·ҪѽǺL@rȻǰһҪӏ Ǻǣ@ԓl(f)F(xin)䌍oώһֱ]}һֱڸV ʲôr}? !
Ҫ80%ϵ_ԓôkǰ䌍@rѽõһıCdȤ^m(x)TPO ]dȤͿ_ʼиģM}}Ȼ߀TPOôӲյЧ?ܺȱȌԭԼǷ eĵطȻe}ԼʲôeٙMȿԼЩ}eȻͻһ@}}ֻн^@^֮}ЧtҲǰ
и ϵxҪYԼӢZ ̶Ҳ̖һnjԼfЧи