Section C Directions: In this section, you will hear three recordings of lectures or talks followed by three or four questions. The recordings will be played only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre. Questions 16 to 18 are based on the recording you have just heard.1.[单选题]______A.Which of them is considered most important.B.Whether it is true love without commitment.C.When the absence of any one doesn't affect the relationship.D.How the relationship is to be defined if any one missing.2.[单选题]______A.They are focused more on attraction than love.B.They were done by his former colleague at Yale.C.They were carried out over a period of some thirty years.D.They form the basis on which he builds his theory of love.3.[单选题]______A. The relationship cannot last long if no passion is involved.B. Intimacy is essential but not absolutely indispensable to love.C. It is not love if you don't wish to maintain the relationship.D. Romance is just impossible without mutual understanding.