CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
二氧化碳CONTOH 其他气体 1%
4%
氧气
17%
78%
二氧化碳 其他气体 0.97%
0.03%
氧气
21%
78%
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
CONTOH
J_1 J_2
CONTOH
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Sains Tahun 4
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Sains Tahun 4
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