Video: Dab tsi yog cov khoom lag luam hauv kev ua lej 4?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov tshwm sim ntawm ob lossis ntau tus lej thaum sib npaug ua ke. lej Games for Kids.
Tsuas yog li ntawd, ib feem ntawm cov khoom hauv qib 4 yog dab tsi?
Cov cov khoom ib nrab txoj kev suav nrog kev sib faib txhua tus lej ntawm tus lej nyob rau hauv lem nrog txhua tus lej ntawm lwm qhov uas txhua tus lej tuav nws qhov chaw. (Yog li, 2 hauv 23 yuav ua tau 20.) Piv txwv li, 23 x 42 yuav dhau los ua (20 x 40) + (20 x 2) + (3 x 40) + (3 x 2).
Ib yam li ntawd, cov khoom lag luam hauv lej piv txwv yog dab tsi? Hauv lej , a khoom yog ib tug lej lossis ib qho uas tau los ntawm kev muab ob lossis ntau tus lej ua ke. Rau piv txwv : 4 × 7 = 28 Ntawm no, tus lej 28 hu ua tus khoom ua 4i7 khoom ntawm 6 thiab 4 yuav yog 24, Vim 6 x 4 yog 24.
Kuj paub, dab tsi yog cov khoom lag luam hauv cov teeb meem lej?
Hauv lej , a khoom yog qhov tshwm sim ntawm kev sib npaug, lossis ib qho kev qhia uas txheeb xyuas cov xwm txheej yuav tsum tau muab sib npaug. Yog li, piv txwv li, 15 yog qhov khoom ntawm 3 thiab 5 (qhov tshwm sim ntawm kev sib npaug), thiab yog qhov khoom ntawm thiab. (qhia tias ob yam yuav tsum tau muab sib npaug ua ke).
Kuv tus menyuam kawm ntawv qib 4 yuav tsum paub dab tsi hauv lej?
Plaub- cov tub ntxhais kawm yuav tsum to taub qhov lub ntsiab lus ntawm kev ua haujlwm thiab tuaj yeem piav qhia tus kev sib raug zoo ntawm qhov sib ntxiv, rho tawm, sib npaug, thiab faib. Qee tus kws qhia ntawv siv lo lus teeb meem uas suav nrog ntxiv, rho tawm, sib npaug, thiab faib siv tag nrho cov lej, feem, thiab lej.
Pom zoo:
Dab tsi yog cov khoom lag luam hauv kev sib npaug molecular rau kev ua tiav cov tshuaj tiv thaiv ntawm aqueous barium hydroxide thiab nitric acid?
Ba(OH)2 + 2HNO3 → Ba(NO3)2 + 2H2O. Barium hydroxide react nrog nitric acid los tsim barium nitrate thiab dej
Vim li cas kev lag luam tshuaj suav hais tias yog kev lag luam yooj yim?
Kev lag luam tshuaj siv cov khoom siv raw los tsim cov khoom lag luam qhia cov kua qaub, hauv paus, alkali thiab ntsev. Cov khoom siv feem ntau yog siv rau hauv kev tsim khoom ntawm lwm cov khoom lag luam xws li iav, chiv, roj hmab, tawv, ntawv thiab textiles. Yog li, peb tuaj yeem hais tias kev lag luam tshuaj lom neeg yog kev lag luam yooj yim
Dab tsi yog cov lej suav tag nrho cov lej suav lej thiab lej lej?
Cov lej tiag yog feem ntau muab faib ua cov lej tsis sib haum xeeb thiab tsis sib haum xeeb. Cov zauv rational suav nrog tag nrho cov lej thiab feem. Txhua tus lej tsis zoo thiab tag nrho cov lej ua rau cov lej suav. Tag nrho cov lej suav nrog txhua tus lej ntuj thiab xoom
Dab tsi yog cov kev lag luam hauv cov tiaj tiaj sab hauv?
Qee txoj haujlwm tseem ceeb yog ua liaj ua teb, hav zoov, mining, thiab kev lag luam roj thiab roj
Vim li cas thiaj muaj kev lag luam thiab kev ua lag luam?
Ua thiab lagging strands coli, DNA polymerase uas tswj feem ntau ntawm cov synthesis yog DNA polymerase III. Cov strand no yog ua tsis tu ncua, vim hais tias DNA polymerase yog txav mus rau tib qho kev taw qhia raws li cov diav rawg replication. Qhov no tsis tu ncua synthesized strand yog hu ua tus thawj strand