阅读短文，回答问题。

Bear Amy,

   I want to be your friend. Let me introduce my family to you. My father is a doctor. He is tall and strong. My mother is a teacher. She is think and kind. My brother Sam is 6 years old. He's short and funny. We live in a big city. However, we usually go hiking on the weekends. I have a small and nice room. There is a bed and a desk in my room. I like reading books. I have many books on my desk. Welcome to my home.

                                                                                                                                                                        Yours,

                                                                                                                                                                          Lucy

现存最早的、标有确切年代的雕版印刷品是（　　）

已知A、B、D、E均为中学化学中的常见物质，它们之间的转化关系如图所示（部分产物略去），则下列有关物质的推断不正确的是（　　）

— How do you go to the club every day?

— By bus. It takes _______ 25 minutes to go there.