5. Which of the following gases is/are present in the fuel obtained after coal gasification?
I: octene gas; II: synthetic gas; IIl: methane gas; IV: mercaptan gas; V propane gas
(A) I and IV
(B) I and V
(C) I, II and IIl
(D) II, IV, and V
(E) II and Ill
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統計: A(2), B(0), C(1), D(1), E(2) #2735908
統計: A(2), B(0), C(1), D(1), E(2) #2735908