Joke Collection Website - Cold jokes - Seek the chemistry anecdotes and materials related to the purification of crude salt in junior middle school chemistry.

Seek the chemistry anecdotes and materials related to the purification of crude salt in junior middle school chemistry.

Junior high school chemistry collection Baidu network disk download

Links:/s/1znmi8mjtas01m1m03zrfq

? Pwd= 1234 extraction code: 1234 Introduction: Download high-quality junior high school chemistry materials, which are suitable for teachers' teaching, students' daily counseling, the sprint of the senior high school entrance examination, and skills improvement at all stages.

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