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题目内容
The Chinese, who began systematic astronomical and weather observations shortly after the ancient Egyptians, were assiduous record-keepers, and because of this, can claim humanity's longest continuous _____ of natural events.
- Adefiance
- Bdocumentation
- Cmaintenance
- Dtheory
- Edomination
B显示答案
以上解析由 考满分老师提供。