⬅️ 返回
144
作答次數
702
總答題數
78%
正確率
👁 全部 🎯 第一次統測 🏯 DSE 文言文 🧪 科學複習 🌏 地理複習 🏛️ 中國歷史 🧭 公民經濟社會
日期學習代號科目章節成績XP
2026-10-17 02:08 訪客 科學複習 Science lab_basics_part1 1/2 (50%) +10 👁 詳情
✅
A chemical is labelled toxic. Which of the following is the correct precaution?
你的答案:Avoid breathing in its vapour and wear gloves |  知識點:危險警告標誌
❌
When water in a beaker is heated with a Bunsen burner, what must be placed on the tripod under the beaker?
你的答案:A piece of filter paper |  正確答案:A wire gauze |  知識點:加熱裝置
2026-10-17 02:08 訪客 科學複習 Science lab_basics_part1 1/3 (33%) +10 👁 詳情
❌
A chemical is labelled toxic. Which of the following is the correct precaution?
你的答案:Store it in an open bottle near a window |  正確答案:Avoid breathing in its vapour and wear gloves |  知識點:危險警告標誌
✅
Which of the following is WRONG when drawing a vertical section diagram?
你的答案:Add shading to give a 3D effect |  知識點:繪圖技巧
❌
When water in a beaker is heated with a Bunsen burner, what must be placed on the tripod under the beaker?
你的答案:A piece of filter paper |  正確答案:A wire gauze |  知識點:加熱裝置
2026-10-17 02:07 訪客 科學複習 Science lab_basics_part1 2/5 (40%) +20 👁 詳情
✅
Which piece of safety equipment protects your body and your clothes?
你的答案:A laboratory coat |  知識點:實驗室安全設備
❌
A chemical is labelled toxic. Which of the following is the correct precaution?
你的答案:Keep it near a flame so it does not spill |  正確答案:Avoid breathing in its vapour and wear gloves |  知識點:危險警告標誌
❌
Which of the following is WRONG when drawing a vertical section diagram?
你的答案:Use a ruler to draw straight lines |  正確答案:Add shading to give a 3D effect |  知識點:繪圖技巧
✅
A burning candle is covered with an inverted gas jar. What will happen, and why?
你的答案:The flame goes out because the oxygen in the jar is used up |  知識點:火三角
❌
When water in a beaker is heated with a Bunsen burner, what must be placed on the tripod under the beaker?
你的答案:A heat-proof mat |  正確答案:A wire gauze |  知識點:加熱裝置