单项选择题


Questions 19 to 22 are based on the conversation you have just heard.

A．Exercising the entire body.
B．Having your blood pressure taken daily.
C．Losing weight prior to exercising.
D．Weighing in before each exercise session.
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单项选择题
The example of tadpoles, fish eggs and waterfowl is used to show that the activities of man could give rise to ______.
A．protecting the enviornment
B．helping to balance nature
C．negative chain reactions
D．killing all the living things
单项选择题
A．The door man.B．One of the Beatles.C．A 20-year-old young man.D．A fan of the Beatles and John Lennon.
A．The door man.
B．One of the Beatles.
C．A 20-year-old young man.
D．A fan of the Beatles and John Lennon.
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