最近form test 有一題選擇題
問哪是發光體
有 太陽 月亮 枱燈
枱燈沒有注明是亮著的
所以我選了 太陽
我認為沒有注明亮著的枱燈 是不會發光的
何況燈泡也要透過電才能發光
違反 發光體要自行發光才算發光體 的道理
老師卻說枱燈是發光體
結果那題我錯了
我認為沒有注明亮著的枱燈 是不發光體
我不認同為什麼我錯
或者出題不當
為什麼燈泡是發光體??
2010-10-05 4:05 am
回答 (2)
2010-10-06 10:11 pm
Light bulb is considered as a luminous object (發光體).
Please refer to the following web-page:
http://wiki.answers.com/Q/What_is_an_luminous_object
Please refer to the following web-page:
http://wiki.answers.com/Q/What_is_an_luminous_object
2010-10-06 4:38 am
switched-on lamp = a luminous object because it emits its own light.
But if it switched off, it is a non-luminous object.
In your question, moon is the answer,because it isn't emit its own light.
But if it switched off, it is a non-luminous object.
In your question, moon is the answer,because it isn't emit its own light.
參考: own knowledge
收錄日期: 2021-04-29 17:36:11
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101004000051KK01045