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原帖由 csonliuson2000 於 10-1-14 10:53 發表 
Agree,
The second one is more specific. In fact both are correct.
May be next time, put it in the second method be more specific.
Not really ... according to chemistry books, both answers are correct.
氧氣 = oxygen
氧 = oxygen
Anyway, this is just a translation issue. In fact, if the kid can answer the " 氧 " or "氧氣", it is correct.
If the teacher insists to follow the model answer due to whatever reason, just let it be. It is nothing wrong. |
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發表於 10-1-14 11:11