_____ with what they were like 15 years ago, home PCs are cheaper, faster, and have a much bigger memory.
A.Compare B.Comparing C.Compared D.Having Compared正确答案C
_____ with what they were like 15 years ago, home PCs are cheaper, faster, and have a much bigger memory.
A.Compare B.Comparing C.Compared D.Having Compared正确答案C
