我想買些試管(test-tube),
同phenolphthalein(即係遇鹼會變粉紅色)做實驗.
邊度有得問呢請問?
收錄日期: 2021-04-12 15:54:34
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061025000051KK01805