C\u00f3 n\u00ean s\u1eed d\u1ee5ng quy\u1ec1n \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh nguy\u1ec7n v\u1ecdng hay kh\u00f4ng?<\/a><\/blockquote><\/iframe>