________ is a musical idea repeated over and over in the bass while melodies above it constantly change.

Paxton's ________, the world's first prefabricated cast-iron structure, offered a prophetic glimpse into the decades that would produce steel-framed skyscrapers

A. Golden Gate Bridge B. Pennsylvania Station C. Eiffel Tower D. Crystal Palace

What is the subject of the reliefs comprising the Great Trajanic Frieze?

A) ?the restoration of the Circus Maximus B) ?the adoption of Trajan C) ?the Dacian Wars D) ?the adoption of Hadrian