A.editing
B.writed
C.written
D.writing
[单选题]D.uring the last few years ,it has been realized that maintenance of programs is more expensive than development, so reading of programs by humans is as important as(73)them.A.editingB.writedC.writtenD.writing
[单选题]D.uring the last few years, it has been realized that maintenance of programs is more expensive than development, so reading of programs by humans is as important as(67)them.A.editingB.writedC.writtenD.writing
[单选题]Television commercials have been under constant scrutinyfor the last few ye
[单选题]She has been working hard day and night during these years ______ she could
[试题]It has been documented that during World War Ⅱ, America's armed forces once tried formation flight to save fuel.
[问答题]()He has been learning English for years.
[问答题]He has been learning English for years.
[问答题]He has been learning English for years.
[单选题]During the pastten years there have been [dramatic] changes in the internat
[单选题]During the pastten years there have been [dramatic] changes in the internat