問題詳情:
Work over the past decade _______ that cracks produced by an earthquake can boost the shaking in future shocks.
A. revealed B. has revealed C. will reveal D. had revealed
【回答】
B
知識點:非謂語動詞
題型:選擇題
問題詳情:
Work over the past decade _______ that cracks produced by an earthquake can boost the shaking in future shocks.
A. revealed B. has revealed C. will reveal D. had revealed
【回答】
B
知識點:非謂語動詞
題型:選擇題