Twv ob kab
Rau tus lej hauv ob kab sib ze, them 5:1. Lus Fabkis: sixain.
Siv hauv nqe lus
Lub npibnyiajNpibIb lub cim uas sawv cev rau ib tus nqi ruaj, muab tso rau saum daim duab rooj twv kom twv. Kuj hu ua: check.Nyeem tag nrho → nyob ntawm ntug sab nraud saum txoj kab ntawm ob kab. Yeej 16.22% ntawm lub sij hawm.
Nws yog kev twv sab hauvkev twvKev twv sab hauvTxhua qhov kev twv uas tso rau saum lossis nruab nrab ntawm cov lej ntawm daim duab: twv ib tus lej, twv ob tus lej, twv ib kab, twv plaub ces kaum, twv ob kab.Nyeem tag nrho → loj tshaj; kauj ruam npog ntau tom ntej yog ib pawg kaum obkev twvPawg kaum ob1–12, 13–24 lossis 25–36, them 2:1.Nyeem tag nrho →, uas yog ib qho kev twv sab nraudkev twvKev twv sab nraudKev twv rau cov thawv uas puag ncig daim duab lej: pawg kaum ob, kab ntsug thiab kev twv them sib npaug.Nyeem tag nrho → uas nyiaj themnyiajNyiaj themQhov uas ib qho kev twv yeej them rov qab, hais ua “X rau 1” ntxiv rau nyiaj twv uas xa rov qab.Nyeem tag nrho → tsuas yog ib nrab.