单项选择题


Questions 32 to 35 are based on the passage you have just heard.

A．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.
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单项选择题
A．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 parents’ ideas.
A．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 parents’ ideas.
单项选择题
A．beginningB．openingC．operationD．promotion
A．beginning
B．opening
C．operation
D．promotion
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