4. Which of the following molecules is not a greenhouse gas?
(A) CO2
(B) C2H2
(C) O2
(D) CO.
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統計: 尚無統計資料
統計: 尚無統計資料
4. Which of the following molecules is not a greenhouse gas?
(A) CO2
(B) C2H2
(C) O2
(D) CO.