12A)It keeps blood vessels from being blocked.
　　B)It speeds up their recovery after surgery.
　　C)It in creases the blood flow to the heart.
　　D)It adjusts their blood pressure.

　　13A)It is harmful to heart surgery patients with stomach bleeding.
　　B)It should not be taken by heart surgery patients before the operation.
　　C)It will have considerable side effects if taken in large doses.
　　D)It should not be given to patients immediately after the operation.

　　Passage Two
　　Questions 14 to 16 are based on the passage you have just heard.
　　14A)They strongly believe in family rules.
　　B)They are very likely to succeed in life. veduchina
　　C)They tend to take responsibility for themselves
　　D)They are in the habit of obeying their parents.

    15A)They grow up to be funny and charming.
　　B)They often have a poor sense of direction.
　　C)They get less attention from their parents.
　　D)They tend to be smart and strong-willed.

    16A)They usually don't follow family rules.
　　B)They don't like to take chances in their lives.
　　C)They are less likely to be successful in life.
　　D)They tend to believe in their parent's ideas.

　　Passage Three
　　Questions 17 to 20 are based on the passage you have just heard.
　　17A)They wanted to follow his example.
　　B)They fully supported his undertaking.
　　C)They were puzzled by his decision.
　　D)They were afraid he wasn't fully prepared.

    18A)It is more exciting than space travel.
　　B)It is much cheaper than space travel.
　　C)It is much safer than space travel.
　　D)It is less time-consuming than space travel.

    19A)They both attract scientists' attention
　　B)They can both be quite challenging
　　C)They are both thought-provoking.
　　D)They may both lead to surprising findings.

    20A)To show how simple the mechanical aids for diving can be.
　　B)To provide an excuse for his changeable character.
　　C)To explore the philosophical issues of space travel.
　　D)To explain why he took up underwater exploration.

［答案］
1-10　　ACDAC BACBD
11-20　DAABC ACBBD