What measures should be taken to prevent a seafood specific foodborne illness?

What basic chinese elements are displayed in the image above? a. mountainsb. riversc. treesd. all of the above

Anarrative piece of are ? a. tells a story or series of event b. serves as a remembrance of an event person c. display the likeness of a person, in order to document their existence d. relates the lives of important individuals

Which of these is a consistent periodic pulse separated into equivalent intervals of time?