1.ĥ
@Ҫ @и Ľݏھ ϣҺصf]ʲôscientific americanõZٿ@ӕrg FFrg̫LĶӷrg̫Чʾ͵ֵܷtoeflҪnjWgϵ°l(f)F(xin)ʲôģҲڷeۿƼӢZ еij~
2. Y
lecture֮ ĸ屾͎пƼӢZLȫ÷x·עtop sentence CtPעʲôȻ⌍Yconclusion;^Ͳͬc; TSͶβּ}_еtᘌ(ji)}ʲôȵȵȵ.....
@հ"GREx39+3"ķ˼·XúЎ]^GҲԽ(toeflƵĕҲ^қ]^)Ϳǰvˣ˶LrgҪǏĽYϰղϣ^(q)cx Ўġ
3.y(tng)Ӌ}}ĿD
҂˼Sⲻһԕ@Nrʹ㶮}Ŀ߀eˡ@N}ĿҪ߶ĕry(tng)Ӌһһи }ĿeȻᘌӖ ԅogVÿһ}ĿʲôеĿе}켚(ji)еĿԒ[Z֮đTe}ͣһҪϤһF(xin)J֪D;@e`ĸʾ͕½