题目

Life has changed in Mexico City. Streets normally filled with people are empty. One of the most popular professional soccer teams recently played a game in an empty stadium that can seat more than 100,000 people. It's swine (猪) flu that has made life in Mexico City grind to a halt (慢慢停了下来)Seemingly out of nowhere, swine flu has caused confirmed deaths in 12 countries as of April 30. It has sent a wave of alarm around the world. Governments are trying to find ways to prevent further outbreaks. The World Health Organization has raised its swine flu global threat level to five out o☆代表一个相同的非零自然数，下列算式中，得数最大的是（　　）A．☆÷89B．89÷☆C．89×☆