A.how cruel the king was B.how clever the minister was C.Sissa was a famous mathematician D.how the game of chess came into being
单项选择题In 1847 most countries of the world were()
A.not yet using postage stamps B.collecting valuable stamps C.buying stamps from Neuritis D.printing their own stamps
单项选择题The computer DIDN'T help the police ()
A.to find the suspect B.to find the murdered couple C.to arrest the suspect D.to search a 1950 or 1951 Chevrolet