_____up at theclock on the wall, the secretary found it was already midnight.

[单选题]Could you help me put up the signs on the wall?______________.A.No problem

[单选题]At midnight,wewere [aroused] by a knock at the door.A.irritatedB.awakenedC.

[单选题]At midnight,wewere [aroused] by a knock at the door.A.irritatedB.awakenedC.

[单选题]At midnight,wewere [aroused] by a knock at the door.A.irritatedB.awakenedC.

[单选题]At midnight,wewere [aroused] by a knock at the door.A.irritatedB.awakenedC.

[单选题]The secretary was flied for ______her duty.A． neglectingB． avoidingC． ignoringD． missing

[单选题]In England，Beatles were already ______as an extremely fine and highly individual rock group.A． establishedB． publishedC． abolishedD． astonished

[单选题]Suppose elements in array A are already sorted ascending order of their values when the code begins to run, then execution time of the code will be （）。（）A. O(log2n) B. O(n) C. O(nlog2n) D. O(n2)

[主观题]Mr.Smithaskedhissecretaryto______anewparagraphintheannualreportshewastyping.A．)injectB)installC)invadeD)insert

[单选题]（） is not a physical wall, but a lot of virtual data to protect the computer network.A . Date wallB . Date channelC . DatabaseD . Firewall