题目

Dear Reader, I receive many letters from children and can’t answer them all—there wouldn’t be time enough in a day. That is why I am sending you this printed reply to your letter. I’ll try to answer some of the questions that are commonly asked. Where did I get the idea for Stuart Little and for Charlotte’s Web? Well, many years ago I went to bed one night in a railway sleeping car, and during the night I dreamed about a tiny boy who acted rather like a mouse. That’s how the story of Stuart Little got started. As for Charlotte’s Web, I like animals and my barn（谷仓）i7.85扩大到它的（    ）倍是78.5。