—What happened to her _______ that cold winter evening?— I don't know, and I'm also curious _______ it.
A:/, of
B:in, about
C:on, about
D:on, for
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-- Good idea.
如图漫画题为《片面的经济》,反映了20世纪三十年代苏联的国民经济状况。该状况是( )