14. The theory __________two reasons for the spread of the disease.
(A) perishes
(B) perspires
(C) postpones
(D) postulates
(E) precipitates
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統計: A(1), B(7), C(4), D(86), E(10) #2751909
統計: A(1), B(7), C(4), D(86), E(10) #2751909