16. Which of the following is not a kind of green gas?
(A) Cl2
(B) CO2
(C) CH4
(D) H2S
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統計: 尚無統計資料
統計: 尚無統計資料
16. Which of the following is not a kind of green gas?
(A) Cl2
(B) CO2
(C) CH4
(D) H2S