問題詳情

18. The average North American home __ function as aresidence if it lost its connections to the outside world.
(A) could not barely
(B) could barely
(C) could have
(D) could have not

參考答案

答案:B
難度:適中0.557018
統計:A(18),B(127),C(24),D(34),E(0)

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