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老师：水的化学分子式是什么？ ？
Teacher: : What is the chemical formula of water?
youdao
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水的化学分子式是H 0 ？。
The chemical formula for water is H0?.
youdao
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老师：唐纳德，水的化学分子式是什么？
TEACHER: Donald, what is the chemical formula for water?
youdao
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水的化学分子式是h2o。
The chemical formula for water is H2O.
youdao
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水的化学分子式是h2o。
The chemical formula for water is H2O.
youdao