81.   The main difference is how the X-ray patterns of white and gray are turned into images.

82.   The main difference is simply that his plan is working.

83.   The main difference is that for her, the public humiliation is much greater.

84.   The main difference is that the benefits of acupressure are not as intense as the benefits of acupuncture.

85.   The main difference now is that there is more of it.

86.   The main difference on most nights seems to be the anchors introducing the stories.

87.   The main difference that remains between shareware and commercial software is distribution.

88.   The main difference?

89.   The main differences are in tempi.

90.   The main physical difference is in their bendability.