the litmus paper turns blue when the solution is a base 当溶液是
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the litmus paper turns blue when the solution is a base 当溶液是?的时候石蕊试纸会变蓝
这里的base指的是什么?base本意里有显色剂的意思,还是碱性的意思.因为常识知道碱性物质使石蕊变蓝.
这里的base指的是什么?base本意里有显色剂的意思,还是碱性的意思.因为常识知道碱性物质使石蕊变蓝.
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碱性溶液的意思
When the Audet family turns on the lights at Blue Farm,they
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英语翻译This paper presents a closed-form solution of the swept
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