13.The symptoms persisted ___________ the administration of antipyretics, indicating that the treatment was not effective in controlling the fever.
(A) because
(B) despite
(C) although
(D) while
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統計: A(1), B(7), C(3), D(2), E(0) #3427171
統計: A(1), B(7), C(3), D(2), E(0) #3427171