题目内容
,when Marx was already ,he began to learn Russian.
A.In 1870s; in his fifties
B.In 1870s; in fifties
C.In the 1870s; in his fifties
D.In the 1870s; in fifties
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题目内容
,when Marx was already ,he began to learn Russian.
A.In 1870s; in his fifties
B.In 1870s; in fifties
C.In the 1870s; in his fifties
D.In the 1870s; in fifties