9. Immediately after completing the study of astronomy, he developed some ____ instrumentation to detect radiation.
(A)crude
(B)exigent
(C)incessant
(D)unilateral
答案:登入後查看
統計: A(31), B(20), C(9), D(14), E(0) #3445907
統計: A(31), B(20), C(9), D(14), E(0) #3445907