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题库 / GMATAdvanced-SC-17
The large populations and impressive cultural achievements of the Aztecs, the Mayas, and the Incas could not have come about without corn, which was not only nutritious but also was able to be dried, transported, and stored for long periods.
which was not only nutritious but also was able to be
which not only was nutritious but also could be
which was not only nutritious but also it could be
not only nutritious but it could also be
not only nutritious but also able to be
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E. This choice does not use not only . . . but also . . . correctly, because what follows not only is not grammatically parallel with what follows but also. What immediately follows not only is an adjective, whereas what follows but also is a verb phrase. Furthermore, could be dried is more idiomatically correct than able to be dried, as is used here.
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