初三化学需要背的基础概念上学期的就可以了额.所有的初三化学(或者只是上学期)要背的基础概念,包括“物质构成”的判别之类.最好都是考点.
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/01 21:19:14
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