A number of new functions ________ to the computer since it was first invented in 1946._刷题宝

题干

A number of new functions ________ to the computer since it was first invented in 1946.

A：have added

B：were added

C：have been adding

D：have been added

上一题下一题 0.0难度选择题更新时间:2010-06-22 01:24:57

答案(点此获取答案解析）

D

同类题1

赵匡胤夺取政权建立北宋是通过（）

同类题2

“在那千钧一发的时刻,你的胸膛是一道胜利的高墙。敌人的罪恶的枪口被堵住了,你生命的火花像长虹一样闪耀……”根据你所了解的历史知识,想一想这首名为《永恒》的诗,是写给谁的　(　　)

同类题3

The man in black must be Lily's brother.（改为否定句）

The man in black ____ ____ Lily's brother.

同类题4

在群落演替中，下列情况哪一种情况是不可能发生的

同类题5

You can hardly imagine the difficulty the woman had _____ her children.

小学学科试题库

初中学科试题库

高中学科试题库