【单选题】1966年,范克等人提出用H 2 O、SO 2 和I 2 为原料进行热化学循环制氢法: 2H 2 O(l)+SO 2 (g)+I 2 (s) H 2 SO 4 (aq)+2HI(g); H 2 SO 4 (aq) H 2 O(l)+ SO 2 (g)+ O 2 (g); 2HI(g) H 2 (g)+I 2 (g)。从理论上讲,该循环中, a mol原料水能制得氢气
【单选题】听力原文:W: The dean just announced that Dr. Jeffery is going to take over as Chairperson Of the English Department. M: I knew it all along. He was the obvious choice. Q: What does the man mean? (16)
A.
He doesn't know Dr, Jeffery very well.
B.
He thought Dr. Jeffery would get the position,
C.
He thought it took too long to make the decision.
D.
He's not sure Dr, Jeffery will be a good chairperson.