问题
选择题
Because of H7N9 bird flu, all the chicken markets in Shanghai have been closed and won't open until further ________.
A．sign
B．symbol
C．contact
D．notice
答案
答案：D
选D 考查名词辨析。句意：因为H7N9禽流感，上海所有的活禽市场都被关闭直到另行通知才能开放。sign“迹象；手势”；symbol“象征；符号”；contact“联系”；notice“通知”。根据句意可知，应选D。