单项选择题
Passage 2 Questions 13 to 15 are based on the passage you have just heard.
A．Balance. B．Enjoyment. C．Relaxation. D．Friendship.
A．Types of Colleges and Universities B．Canadian Education C．Canadian Education Program D．Differences between College and University
A．geography of the Pacific Ocean B．commercial role of the Pacific Ocean C．its origin of the name D．general introduction of the Pacific Ocean