Complicated_____itis,theproblemcanbesolvedinonlytwohourswithanelectroniccomputer.
A.though B.even though C.even if D.as正确答案D
Complicated_____itis,theproblemcanbesolvedinonlytwohourswithanelectroniccomputer.
A.though B.even though C.even if D.as正确答案D