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【单选题】
若已知下列电对电极电势的大小顺序EΘ(F2/F-) > EΘ(Fe3+/Fe2+) > EΘ(Mg2+/Mg) > EΘ(Na+/Na),则下列离子中最强的还原剂是A.
F-
B.
Fe2+
C.
Na+
D.
Mg2+
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皮皮学刷刷变学霸
举一反三
【单选题】The bird was lucky that it just missed __________ .
A.
catching
B.
being caught
C.
to be caught
D.
to catch
【单选题】The bird was lucky that it is just missed ________.
A.
catching
B.
to be caught
C.
being caught
D.
to catch
【单选题】The bird was so lucky that it missed
A.
catching
B.
to catch
C.
to be caught
D.
being caught
【单选题】Upon their entering the tomb, Carter’s lucky pet bird, which he ____ in Cairo, was swallowed by a snake.
A.
was left
B.
had left
C.
left
D.
was leaving
【单选题】The bird was lucky enough to escape ________ by the young man.
A.
caught
B.
to be caught
C.
catching
D.
being caught
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