Imagine that the genome?(基因组) is a book. The book consists of 23 chapters with thousands of stories made up of paragraphs, words and letters on different levels. There are one billion words in the book, which makes it longer than 5,000 volumes the size of this book, or as long as 800 Bibles. If I read the genome out to you at the rate of one word per second for eight hours a day, it would take me a century. If I wrote out the human genome, one letter per millimeter, my text would be as long as the River Danube.?
1. The real purpose of the authors comparison of the genome to a book is___________.?
A. to focus on the differences between the two?
B. to lay emphasis on the similarities between the two?
C. to simplify the concept of the human genome?
D. to give an exact description of the human genome
解析: 基因组是一个非常抽象难懂的科学术语。作者在这里把基因组比作一本书,使一般读者能通俗形象地了解基因组的概念。故答案为C。?
Beldon and Canfield are two seashore towns, not far apart. Both towns have many hotels, and in summer the hotels are full of holidaymakers and other tourists(观光者).
Last August there was a fire at the Seabreeze Hotel in Beldon. The next day, this news appeared on page two of the towns newspaper. The Beldon Post:? FIRE AT SEABREEZE?
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2019-11-15
2019-11-15
2019-11-15
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2019-11-15