subject
History, 07.12.2020 19:30 hePandaKing3689

The dragon backbone pump was invented during the Song dynasty. What does a dragon backbone pump do? a. helps doctors treat bone illnesses b. helps pump water out of flooded boats c. allows one man to scoop water from one place and dump it into an irrigation canal d. automatically pumps arrows through a long tube Please select the best answer from the choices provided A B C D

ansver
Answers: 1

Other questions on the subject: History

image
History, 21.06.2019 22:30, Marley3082
Profits are maximized when marginal revenue and marginal costs are a. set c. equal b. less than market price d. greater than market price
Answers: 2
image
History, 21.06.2019 23:20, veronica25681
When conducting research for forming a hypothesis, which practice should historians follow?
Answers: 2
image
History, 22.06.2019 01:00, Cocco
Brainliesttt !me : ) what was the result of indian independence?
Answers: 1
image
History, 22.06.2019 01:30, shreyasvrangan
How did the king kanissa’ai become very rich
Answers: 2
You know the right answer?
The dragon backbone pump was invented during the Song dynasty. What does a dragon backbone pump do?...

Questions in other subjects: