A.exceeded
B.expired
C.terminated
D.elapsed
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A.modify
B.testify
C.rectify
D.justify
A.converge
B.grope
C.strive
D.grip
A.context
B.contest
C.pretext
D.texture
A.amplify
B.foster
C.enhance
D.magnify
A.transaction
B.transmission
C.transformation
D.transition
A.canceled
B.dissipated
C.discarded
D.concealed
A.They were being kept prior to the seventeenth century.
B.They mention only epidemics of smallpox.
C.They provide quantitative and qualitative evidence about Native American populations.
D.They prove that certain diseases were unknown in the pre-Columbian New World.
A.to provide support for a hypothesis
B.to reconcile opposing viewpoints
C.to refute a common misconception
D.to analyze an argument in detail
A.demonstrate the impact of modern medicine on epidemic disease
B.advocate new research into the continuing problem of epidemic disease
C.confirm the documentary evidence of epidemic disease in colonial America
D.refute allegations of unreliability made against the historical record of colonial America
A.recur more frequently than chronic diseases
B.involve populations with no prior exposure to a disease
C.usually involve a number of interacting diseases
D.are less responsive to medical treatment than are other diseases
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