Over the course of the passage, the main focus shifts from a A :the description of an outbreak to the application of a scientific technique. B :The dangers of disease to its proper prevention. C :a city's

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asked Sep 15, 2021 40.2k views

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Over the course of the passage, the main focus shifts from a

A :the description of an outbreak to the application of a scientific technique.
B :The dangers of disease to its proper prevention.
C :a city's polluted past to its modern sewage systems.
D :describing theories of disease transmission to specific examples of outbreaks.
.. .