题目

    The most frightening words in the English language are, “Our computer is down” . You hear it more and more when you are on business. The other day I was at the airport waiting for a ticket to Washington and the girl in the ticket office said, “I’m sorry, I can’t sell you a ticket. Our computer is down.” “If your computer is down, just write me out a ticket.” “I can’t write you out a ticket. The computer is the only one allowed to do so.” I noticed every passenger was just standing there drinking coffee and staring at the black screen. Then I looked down on the c鸽是善于飞行的鸟类，它的身体中最发达的肌肉位于（ ）；A．腿部 B．翼尖C．头部 D．胸部