Li 2x: Ngha l¨¤ i kh¨¢ch thng hoc h¨°a. i l nh¨¤ c¨¢i, hng lng hp dn Qun l ngn s¨¢ch: Khi tham gia chi, bn cn chn mc cc ph¨´ hp vi bn thn tr¨¢nh ri ro khng ¨¢ng c¨®. Vic t cc hp l s gi¨²p hi vi¨ºn c¨® th duy tr¨¬ ngun t¨¤i ch¨ªnh. Phn t¨ªch chu k lp s v¨¤o bc nh Thng np cc theo tun Ca T¨¤i: Khi tng im 3 vi¨ºn t 11 n 17. t 100 im thu v 100. loi k¨¨o n¨¤y s khng c¨® trng hp h¨°a, m¨¤ s c¨® trng hp mt tin cc hoc thng tin cc. Cc Chn L s lng th pht c¨® trong hip u ti¨ºn. i vi h s m im hp dn ca ¨¢ g¨¤ C1 nm nhng c¨² ¨¢ mnh m c¨´ng c¨¢c b¨ª quyt c¨´ng k nng quan s¨¢t. Mi trn u k¨¦o d¨¤i trung b¨¬nh 10 ¨C 15 ph¨²t nhng li khin ngi xem hi hp khng ngng. T l thng cc ph thuc v¨¤o k nng phn t¨ªch trn u, la chn g¨¤ chin ph¨´ hp v¨¤ c k¨¨o chun x¨¢c. Mo hay gia tng c hi nhn thng

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