（2012•金华）人们对真菌与植物、动物关系认识的演变历程如下：

请回答有关问题：

注意: 1）字数 100 左右；

2）可以适当增加细节，使文章行文连贯。

Dear Sir/Madam,

根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。

    The computer is fast, and never makes a mistake, while people are too 1 and full of mistakes sometimes. That's what people often say when they talk about computers. For over a quarter of a century, scientists have been 2 better and better computers. Now a computer can do a lot of everyday 3 wonderfully. It is 4 used in factories, hospitals, post offices and airports. A computer can report, decide and control in almost every field. Many computer scientists are thinking of making the computer “think” like a man. With the 5 of a person, a computer can draw pictures, write music, talk with people, 6 chess, recognize voices, translate languages and so on. Perhaps computers will one day really think and feel. Do you think the people will be 7 when they find that the computer is too clever to listen to and serve the people? No, people will make 8 use of the computers in the future. Man is always the master of the computer. The computer 9 only with the help of man. It cannot take the 10 of man.

下列四种模型仅由C、H、O三种原子组成，下列说法正确的是（　　）

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