What plays a key role in the development of most gastric ulcers?

This is a government controlled by one person with absolute power. question 3 options: communist democratic autocratic parliamentary

Which groups of people most directly benefited from song innovations in the song dynasty‘s open border policy?

Sariah enters a room with several chirping crickets in it. upon first entering the room, sariah can hear the chirping; however, as she begins to talk to her friends, she is no longer aware of the chirping even though it is still there. the fact that sariah no longer perceives the chirping sound demonstrates sensory