Mei Li:
Which river separates New York City from New Jersey??
Shuai Zheng:
hudson river
Mei Li:
Although not the state capital, which is the largest city in Nebraska??
Shuai Zheng:
omaha
Mei Li:
"In 1904 the Russian cruiser ""Rossia"" used what, the first time it was used by a warship on the high seas during a time of war?"?
Shuai Zheng:
observation balloon