In which of the following did engieneers make advantages in tang and song china?   someone i need this !

Along narrative poem about the heroic figure is

Averb diagram that shows the similarities and differences of two african kingdoms

How would high tariffs hurt america? a. fewer immigrants would be able to move to america b. sales of american products to other countries would go down c. americans would sell more goods to other countries d. goods imported from other countries would cost less