Ҫܶ ķ?jn)?sh)ߣô ҪôӲߣeЩΌ(sh)õķҌW(xu)(x)
1Ԓ}жҪᘌ(du)ԇČW(xu)g(sh) ̽(ji)Ŀ(discovery)ע ǿҪͨ^Ļȥ˽(ni)ݣһҪȫͨ^ ױ顣Ȼ߀ voaĿһҪ ٵǂ(g)
2 fиһ낀(g)^ȻuLr(sh)gBm(x) ɂ(g)Сr(sh)Ȼ˼Sֹ
3ӛPӛпԇӺLһڕr(sh)gܾorºyȫӛXһҪ(x)ӛ ʲô ϶Ҫ(jin)ӛPӛ
4 Ĝ(zhn)_һиĸN̲Ķ҂(g)]kaplanܛ߀ǽ̲Ķஔ(dng)ámȻ}˼·ʽԇвe龚(x)ǺƷx
@4c(din)ֻҪ(jin)(jng)(x)ھ(x)^ ʽ߅ ߅Lڕ(hu)_(d)ܺõЧ