【简答题】Fill in the blanks with the proper forms of the given words. suspect quarantine transmit epidemic vaccine confirm Infect outbreak (1) A pneumonia _________ was first reported...
【单选题】听力原文:Ladies and gentlemen, I'm sorry to announce that tonight's concert will be delayed by an hour due to technical difficulties. The program will now begin at 7 p.m. We encourage you to visit the caf...