Mei Li:
Recuyell of the Historyes of Troye, printed in Bruges around 1475 is regarded as the first book to have been what??
Shuai Zheng:
printed in english language
Mei Li:
Which of the noble gases takes its name from the Greek for 'hidden'??
Shuai Zheng:
krypton
Mei Li:
How many stars make up Orion's belt??
Shuai Zheng:
3