12. Scientists still have difficulty __________ when a great earthquake will occur.(A) predicting(B)

問題詳情

12. Scientists still have difficulty __________ when a great earthquake will occur.
(A) predicting
(B) healing
(C) motivating
(D) focusing

參考答案

答案：A
難度：計算中-1
書單：沒有書單，新增

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