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．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]During 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.(73) A．editingB．writedC．writtenD．writing

[单选题]Television commercials have been under constant scrutinyfor the last few ye

It has been more than five years ___ they met last time in Wuhan.A. sinceB. alt

[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.

The mobile payment market ______ in China during the past few years.A. thrivedB.

The writer told the children that she________ quite a few detective stories in t

In the last few years thousands of films _____ all over the world.A. have produc

[问答题]()He has been learning English for years.