U.S. yields sink with dollar on dovish Fed bets; HK shares dip

TOKYO, Nov 25 (Reuters) - U.S. long-term Treasury yields sank to a more than seven-week trough on Friday while the dollar dropped back toward recent lows against major peers as markets continued to digest dovish signals from the Federal Reserve.Expectations of a less aggressive pace of U.S. monetary tightening from as soon as next month continued to support some stock markets in Asia, but Hong Kong's Hang Seng…