【单选题】听力原文:W: Have you finished your research report? M: Finished? It would take days. Q: What do we learn from the conversation? (7)
A.
The report is difficult.
B.
The report is very long.
C.
The report has been finished.
D.
The report will be finished in two days.
【单选题】设 ,若f(f(1))=1,则a=( )
【单选题】小儿何年龄起能形成兴奋性和抑制性条件反射:( )
【简答题】—Have you finished the poster for the party?—Not yet. I ________ it in two days.A. finish B. finished C. will finish
【单选题】设集合 A={2,3, a}, B={1,4}, 且A ∩B ={4 },则a = ( )
【单选题】The task is ______finished! Thus, we may have a celebration party this weekend.