For several centuries after the disintegration of the Roman Empire, the main source of water supply was from ______.

Câu hỏi :

For several centuries after the disintegration of the Roman Empire, the main source of water supply was from ______.

A springs and wells      

B water pipes

C dams and canals    

D systems of aqueducts

* Đáp án

A

* Hướng dẫn giải

Phương pháp giải:

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