Very few people understood his lecture, the subject of which was very ________.
(A) obscure
(B) upsetting
(C) distant
(D) inferior

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統計： A(308), B(96), C(79), D(121), E(0) #330533

詳解 (共 1 筆)

#309519
(A) obscure         暗的, 黑暗的; 朦朧的；含糊不清的
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