Chia nh ngun vn H¨¤nh Kim Gii thiu khuyn mi o¨¢n t s hay K¨¨o t¨¤i xu n.75 hay n hoc n.5 ¨C n + 1 Vy cn t¨ªnh nh th n¨¤o. Cng thc t¨ªnh cc xi¨ºn cho nhng loi k¨¨o cc n¨¤y c th hin nh sau: G¨¤ chin mng n¨¤y ch yu l¨¤ v¨¤ng hoc trng. rng tr¨ºn lng ch¨²ng ¨¢nh l¨ºn v¨¤ng s¨¢ng hoc trng tinh khi s to n¨ºn h¨¬nh nh tng ng gia ¨¢nh kim ca c¨¢c nguy¨ºn t kim loi. iu n¨¤y mang n h¨¤o quang, qu ph¨¢i cng nh may mn ca ch¨²ng. Mt hi Trng hp t qu c¨® cht c 3 i thng khng nu bn nm trong tay 3 cp qun li¨ºn tip hy n¨ºn cn thn, di y l¨¤ mt v¨¤i c¨¢ch bn ¨¢nh ra b n khng s b chn ngc: Quy nh r¨²t tin thng Thng t¨´ng: Thut ng ph bin ch vic gi¨¤nh chin thng khi i th ri v¨¤o t¨¬nh trng ¡°Cht t¨´ng¡±, to li th r rt cho ngi chin thng. Kim so¨¢t t¨¤i ch¨ªnh l¨¤ yu t quan trng gi¨²p bet th duy tr¨¬ s n nh, ng thi nng cao kh nng chin thng. Di y l¨¤ nhng mo qun l¨ª vn cc thc tin c nhiu cao th ¨¢p dng: Chin thut o¨¢n b¨¤i i th gi¨²p bn kim so¨¢t v¨¢n trong c¨¢ch chi b¨¤i phm. Ngi chi gii quan s¨¢t c¨¢c lt ¨¢nh, x¨¢c nh l¨¢ r¨¢c, v¨¤ phng o¨¢n phm c¨°n tr¨ºn tay i th. Theo thng k¨º, chin thut n¨¤y gi¨²p tng c hi thng trung b¨¬nh 25% mi v¨¢n. Bt u bng c¨¢ch quan s¨¢t nhng l¨¢ i th b qua hoc h phm nh.

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