Raws li txoj cai "Txoj siv thiab txoj kev" mus ua ntej, Changrong kuj xa neeg tus neeg mus rau qhov chaw tus neeg los sib tham txog kev lag luam ua ke.
Tus thawj coj muag -Ms Wang Jue thiab cov thawj tswj -Ms Xue Wenqin tau ntsib tus neeg muaj lub Hoobkas rau kev kuaj lawv cov khoom qub.
Tus neeg tau txais kev pabcuam yog tsim cov tshuaj phosphorus pentasulfide hmoov. Vim yog lub phosphorus pentasulfide hmoov yog lom, yooj yim heev yuav tsum tau tawg yog kov tau pa.Yog li ntawd, nws yuav tsum muaj kev sib khi zoo ntawm cov khoom ntais.
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