問題詳情

30. ________ the GPS in his smartphone, the mountain climber couldn’t be located so fast.
(A) If there is
(B) Only with
(C) If he hadn’t had
(D) If it were not for

參考答案

答案:D
難度:適中0.504644
統計:A(12),B(22),C(98),D(163),E(0)

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