15. An earthquake ______ last night. (A) occurs (B) occurred (C) was occurred (D) has occurred

問題詳情

15. An earthquake ______ last night.
(A) occurs
(B) occurred
(C) was occurred
(D) has occurred

參考答案

答案：99

統計：A:0,B:1,C:0,D:0,E:0

難度：計算中

上一篇 : 14. Neither of the students ______ that both mystery writer Agatha Christie and inventor Thomas Edis
下一篇 : 3.如【圖 3】所示，假設電晶體 β＝100、VBE(sat)＝0.8V、VCE(sat)＝0.2V，欲使電晶體進入飽和狀態，則 RC 最小值為何？(A) 100Ω (B) 113Ω (C) 200