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题目内容
（黑龙江省教育学院口语(专升本)）
(单选题) We know very little about the central Africa 200 years ago because( )(本题1.5分)
A、 there was nothing worth being written down at that time
B、 the people there ignored the importance of keeping a record
C、 the written records were perhaps destroyed by a fire
D、 the people there did not know how to write
A、 there was nothing worth being written down at that time
B、 the people there ignored the importance of keeping a record
C、 the written records were perhaps destroyed by a fire
D、 the people there did not know how to write
参考答案