¿por qué las romanos son los grandes maestros de la construcción hidráulica?

Es porque los romanos trabajan muy duro y son increíbles trabajando en cosas así.

Explanation:  

Espero haberte ayudado

Explanation:

Lo siento, mi español es no bueno, pero in ingles:

The Romans were the first to bring running water into cities. They were one of the firsts who made watermills. They made things such as aqueducts that brought loads of water into their cities at a time.

In mal español (via Google Translate):

Los romanos fueron los primeros en llevar agua corriente a las ciudades. Fueron uno de los primeros en fabricar molinos de agua. Hicieron cosas como acueductos que traían cargas de agua a sus ciudades a la vez.

after world war ii, the united states and the soviet union were the major economic, military, and political powers. the world was bilateral multipolar bipolar unilateral

after world war ii, the united states and the soviet union were the major economic, military, and political powers. the world was bipolar.  

the great leap forward, mao zedong's plan to increase china's agricultural and industrial production, was an overwhelming success. true false

the great leap forward, mao zedong's plan to increase china's agricultural and industrial production, was an overwhelming success. true.

explanation:

answer; ///i believe that the correct answer is ; hieroglyphs or glyphs; the maya script, also known as maya glyphs, was the writing system of the maya civilization of mesoamerica; as always plz check first..good luck