34. Have you ________ the abnormalities on this machine before?
(A) saw
(B) see
(C) seeing
(D) seen

答案:登入後查看
統計: A(115), B(95), C(65), D(530), E(0) #1212244

詳解 (共 1 筆)

#5304479
34.你以前有沒有見過這臺機器的異常情况...
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