搜尋標籤: "safety measures in using town gas and liquefied petroleum gas"

Energy Sources in Everyday Life (English… duration 16 minutes 37 seconds Energy Sources in Everyday Life (English… Energy Sources in Everyday Life (English subtitles available)	Energy Sources in Everyday Life (English subtitles available) This programme is divisible into 6 segments as… save energy +2 更多 ronson@hkecl.net 20/2/2020 0 個讚 1,280 次播放學科科學教育 Science Education 學習階段第三學習階段 (中一) Key Stage 3 (S1) 第三學習階段 (中一至中三) Key Stage 3 (S1 - S3) 作者教育局課程資源組版權聲明所有版權由香港特別行政區政府擁有上載日期 31/8/2006