单项选择题

A high negative ion count is likely to be found _________.

A．near a pond with a water pump
B．close to a slow-flowing river
C．high in some barren mountains
D．by a rotating water sprinkler
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单项选择题
According to the passage, if a woman takes on several social roles, _________.
A．it will be easier for her to overcome stress and strain
B．she will be more successful in her career
C．her chances of getting promoted will be greater
D．her life will be richer and more meaningful
单项选择题
According to the passage, static electricity can be caused by_________.
A．using home-made electrical goods
B．wearing clothes made of natural materials
C．walking on artificial floor coverings
D．copying TV programs on a computer
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