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问题 单项选择题 A1型题

睑腺炎大多因哪种细菌感染引起（）。

A.肺炎球菌

B.金黄色葡萄球菌

C.流感嗜血杆菌

D.大肠杆菌

E.变形杆菌

答案

参考答案：B

解析：该题是基础理论记忆题。睑腺炎是一种由化脓性细菌感染引起的急性炎症。大多数睑腺炎由葡萄球菌感染引起，最常见的是金黄色葡萄球菌。因此答案选B。

解答题

对于函数f（x），∃x0∈R，使f（x0）=x0，则称x0是f（x）的不动点．求证：f（x）=x2+1没有不动点．
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单项选择题

Oscar Night Oscar Night is one of the most awaited events in the entire entertainment industry of the world. The award ceremony has become an inseparable component of the life of all the people associated with Hollywood. One cannot simply escape the charm of this wonderful night. The Scheduled time of the glitzy evening of Academy Award is usually late February or early March. It is time when the awards are presented for the year-best achievements in the Motion Picture Industry. The Oscar statuette, presented during the Awards night. Is regarded to be the most prestigious honor for Hollywood artists. Oscar ceremony was started with the intention of acknowledging the excellence in Holly- wood. It was also an approach, made along time back, to encourage the spirit of the people connected with the Motion picture industry. The various categories of award try to honor people involved in all the facets of filmmaking. Academy Awards Night comprises of that point of time when the talented artists of the film fraternity get the apt recognition. It is the best way of honoring the efforts and dedication that go into the making of a movie. Oscars are organized in a grand manner, with an alluring appeal. This mega event takes place an the Kodak Theatre, in Los Angeles, annually. Oscar Night is the much-awaited moment, when all the stars of Hollywood gather at a single venue, The Red Carpet is roiled out for the dignitaries of the function. The air is filled with the gusto and zeal of the celebrities, who are invited to witness this ceremony. The atmosphere of Oscar Night is ruled by an element of surprise. It is the night when the mystery unfolds with each passing moment, with the announcement of winners in various categories.

In the last paragraph, the last word "categories" means ______.

A．varieties

B．territories

C．celebrities

D．vocabularies
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