Aug 27, 2023 Tso lus

Ob 2 hom teeb taws kub ceev yog dab tsi?

Ob 2 hom teeb taws kub ceev yog dab tsi?

1). Muaj ob hom teeb pom kev kub ceev: (i) teeb pom kev kub ntxhov ceev; (ii) standby teeb pom kev zoo. Kev khiav dim teeb pom kev kub ntxhov yog txhais tau tias yog "ib feem ntawm lub teeb pom kev kub ntxhov uas tau muab los ua kom muaj kev nyab xeeb tawm hauv qhov xwm txheej tsis ua haujlwm ntawm cov khoom siv ib txwm muaj".

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