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(2), B(18), C(4), D(3), E(0) #3427171
統計: A(2), B(18), C(4), D(3), E(0) #3427171