x
No Plagiarism!VA6pxTmgGkiZYtylSFr3posted on PENANA 忘記寫氫氣不能裝入氣球,要用氦氣填裝喔!氦氣是惰性氣體,較穩定,但氦氣很貴,要從美國進口;反之,氫氣便宜易取得,但遇熱容易爆炸,就像日常遇到不好的事很容易爆氣~8964 copyright protection223PENANAfNDaDBOX7l 維尼
歡迎糾正,我國中理化從沒及格過~8964 copyright protection223PENANAvvzblDv968 維尼
227Please respect copyright.PENANAuFydMteVZj
8964 copyright protection223PENANAYKFx9KSCnX 維尼
2023.8.7 留8964 copyright protection223PENANAwLF4LlFQ56 維尼
227Please respect copyright.PENANAjeZH9pbTfF
8964 copyright protection223PENANAYu2CwNf4Wc 維尼
15.158.61.44
ns 15.158.61.44da2