The bills primarily differ in what a state would have to do to be allowed to collect sales tax from out-of-state vendors and the size of the de minimus rule to exempt small vendors from collection.
The usual rule of thumb for screen size, by the way, is that you should sit about 2.5 times as far away from your TV as the diagonal measurement of the screen.
The suspension was adjusted for China's rough roads, and engine size cut from 3.5 litres to 2.8, to accommodate a rule that limited government cars of over three litres to minister level or above.
Now consider the potential size of a first-world economy in much of China--with sufficient openness and rule of law--plus the likely international links as its membership in the World Trade Organization kicks in.