单项选择题
A.summit
B. tip
C. height
D. apex
单项选择题 In the book Autobiography of Values, the aviation hero Charles Lindbergh reveals his paradoxical and often sobering thoughts on life.()
单项选择题 Numerous parallels exist between Ernest Hemingway’s life and the lives of his ()characters.
单项选择题 The Moon and most artificial satellites travel around the Earth in elliptical paths().