1.   It has remained virtually unchanged since time immemorial.

2.   At first glance, He Yuan seems unchanged since medieval times.

3.   But futuristic inventions are mostly strangely isolating fantasies of convenience and power, many of which have remained unchanged since the days of Tom Swift.

4.   Few companies today can boast the longevity of Charles Atlas Ltd., whose fitness plan has remained largely unchanged since Atlas and Roman wrote it.

5.   However, as McCurry acknowledged, the rules are unchanged since the Bush administration, which was never the target of a special prosecutor.

6.   Measured on a trade-weighted basis, the dollar is virtually unchanged since the attacks.

7.   Price expectations have now been unchanged since July.

8.   The building and the sign out front appear unchanged since the time of the crime.

9.   The Fed has left the rate unchanged since that time.