You are twenty-one years old and live a happy and peaceful life. ____ one day, your doctor tells you that you have a serious disease and will die soon. What would you do?____ (probable) most of us might feel very sad and give up our dreams and hopes for the future. Here is ____ the great scientist, Stephen Hawking, did.

    Hawking wasn't ____ (discourage) because of his physical condition.____, he went on with his study of the universe. In 2002, Hawking was invited to China. He told Chinese students about his theories and thoughts ____ some of the greatest questions: what is time, how the universe began, and what are black holes. He impressed the audience with his humor, confidence and of course his ____ (wise).

    Hawking became famous in the early 1970s. In 1988, he wrote A Brief History of Time, in ____ he explained difficult theories in a simple way. The book ____ (sell) well since it came out.

    Stephen Hawking is a man with a strong will and he is regarded as the ____ (great) mind in physics since Albert Einstein.

下列选项中，依次填入下面文字中横线处的标点符号，最恰当的一项是（   ）
2003年11月9日，   中国新闻发布买践与创新论坛   在北京大学举行，中央部委   企业新闻发言人   学界和业界的专家学者与会，回顾过去十年新闻发布制度的发展历程，并就新形势下新闻发布所面临的挑战和机遇进行探讨。
时代的变迁，会给新闻发言人带来怎样的挑战和机遇？
老路已经走不通了   政府信息发布依赖主流媒体的做法，与年轻网民越来越多的现实，形成了一个剪刀差，“导致有时候政府发布的新闻没有及时被想要告知的人接收到   这是北京大学新闻与传播学院教授程曼丽的判断。

1929-1933年资本主义经济危机的特点包括（   ）

①波及范围特别广②持续时特别间长③首先在美国爆发④破坏性特别大