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Answers
A
B
C
D
E
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A. serving a given population is usually five times more efficient in a European city than it is in an American city
B. serving a given population will usually be five times more efficient if it is placed in a European city instead of an American city
C. will usually be five times more efficient in a European city than one serving a comparable population in an American city
D. in a European city will usually be five times more efficient than will a system serving a comparable population in an American city
E. that is implemented in a European city will usually be five times more efficient than if it is implemented with a comparable population in an American city
OA D
Source: Princeton Review













