13. __________ the fact that his initial experiments had failed, Professor White persisted in his research.
(A) As far as
(B) In spite of
(C) As long as
(D) In case of
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統計: A(17), B(534), C(19), D(23), E(0) #2023074
統計: A(17), B(534), C(19), D(23), E(0) #2023074