Tsis tas li - nws yog qhov tseem ceeb ntawm kev ncav cuag qhov chaw tawg tshwj xeeb.
Cov pa roj carbon monoxide qhov kev tawm tsam tawg yog nyob hauv 12.5% rau 74.2%.
Tsis tas li - nws yog qhov tseem ceeb ntawm kev ncav cuag qhov chaw tawg tshwj xeeb.
Cov pa roj carbon monoxide qhov kev tawm tsam tawg yog nyob hauv 12.5% rau 74.2%.