Q: Does "In the US there were more varied practices and a tendency to use higher bass turnover frequencies such as 500 Hz as well as a greater treble rolloff like 8.5 dB and even more to record generally higher modulation levels on the record." provide a valid answer to "Which country used the most varied equalization practices?"?
A: yes

Q: Does "Database storage is the container of the physical materialization of a database." provide a valid answer to "What is database storage?"?
A: yes

Q: Does "Sun Quan relocated his capital to Nanjing after Liu Bei's suggestion as Liu Bei was impressed by Nanjing's impeccable geographic position when negotiating an alliance with Sun Quan." provide a valid answer to "What is Nanjing surrounded by?"?
A: no

Q: Does "The Times used contributions from significant figures in the fields of politics, science, literature, and the arts to build its reputation." provide a valid answer to "The Times used contributions from significant figures to build what?"?
A:
yes