問題詳情
Since computers were first introduced in the early 1980s, technology ____ a great deal.
(A) changes
(B) changed
(C) has changed
(D) had changed
(A) changes
(B) changed
(C) has changed
(D) had changed
參考答案
答案：C
難度：適中0.576923
統計：A(1),B(12),C(150),D(74),E(0)
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