79. The real purpose of the author’s comparison of the genome to a book is ________.
A. to focus on the difference 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
Section C
Directions: Read the following text and choose the most suitable heading from A-F for each paragraph. There is one extra heading which you do not need.
A. Out-of-Body Factors on Biological Clocks B. Brain Cells Controlling Biological Clocks C. Biological Clocks Controlling Birds Flying D. Benefits of Studying Biological Clocks E. Inside-Body Factors on Biological Clocks F. Biological Clocks Controlling Activities |