อยากได้แบบฝึกหัดฟรีนับพัน (ไม่มีสิ่งรบกวนเลย)?
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NgocChau30
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Hóa học
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Nguyên tử
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Age 14-16
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level: 8
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Vietnamese
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Created by
NgocChau30
-
Hóa học
-
Nguyên tử
-
Age 14-16
-
level: 8
-
Vietnamese
คำแนะนำของผู้เขียน
Những hiểu biết về đặc điểm nguyên tử.