24. The scientist _____ discovered this species received a major award.
(A) who
(B) which
(C) whose
(D) whom
答案:登入後查看
統計: A(219), B(16), C(11), D(14), E(0) #3430660
統計: A(219), B(16), C(11), D(14), E(0) #3430660