Rd txhais li cas rau qib?
Rd txhais li cas rau qib?

Video: Rd txhais li cas rau qib?

Video: Rd txhais li cas rau qib?
Video: Npau suav pom ntshav txhais li cas? 2024, Kaum ib hlis
Anonim

RD ( Tshaj tawm qeeb ) Qib. 1. Lub cim RD yog siv rau qhov kev ncua sij hawm ntawm kev tshaj tawm qib yog vim muaj xwm txheej dhau ntawm tus menyuam kawm ntawv. Lub cim yog muab los ntawm Lub Chaw Haujlwm Sau Npe nkaus xwb.

Ib yam li ntawd, koj tuaj yeem nug, qib RD yog dab tsi?

RD txhais tau tias Kev Tshaj Tawm Tshaj Tawm. Nws tsuas yog muab los ntawm tus neeg sau npe thiab siv thaum muaj kev ceeb toom qeeb. Nws yog ib qho kev sau ib ntus uas yuav tsum tau hloov los ntawm qhov chaw mus tas li qib sai li sai tau. Nws raug nquahu kom ua raws li koj tus kws qhia.

Tsis tas li ntawd, qib txhais tau li cas? Yog li, tus A yog 95, ib nrab ntawm 90 thiab 100. Ib qho A- yog 91.25, ib nrab ntawm 90 thiab 92.5. Lwm yam Qib nruab nrab ntawm cov no yog qhov nruab nrab. Piv txwv li, A / A- yog tus lej (95 + 91.25) / 2 = 93.125, uas yog A me ntsis qis dua 95 / A.

Tsis tas li ntawd, AT txhais li cas hauv cov qhab nia?

T (ib ntus). Qib ntawm TB +, TB, TC +, TC, TD, TF, thiab TZ yog siv rau tag nrho cov tsis tiav thiab ib ntus qib . Ib ntus qib raug muab los ntawm tus kws qhia kev txiav txim siab thaum tus menyuam kawm ntawv tsis tau ua tiav cov haujlwm uas yuav tsum tau ua (piv txwv li, cov haujlwm loj lossis kev xeem).

MS txhais li cas hauv qib?

" MS " sawv cev rau Mint State thiab 69 yog a qib tus lej ntawm qhov ntsuas ntawm 1 txog 70.

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