阿摩線上測驗
14. __________ the life-threatening disease, we had greater confidence that we would be able to develop a cure for it.
(A) Having researched
(B) In order to research
(C) Whatever research on
(D) Our research of
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統計： A(223), B(31), C(17), D(10), E(0) #1819817
統計： A(223), B(31), C(17), D(10), E(0) #1819817
