21.   On-line merchants and software companies have not yet figured out the most efficient method of getting a cut of this market.

22.   Unprotected anal intercourse, an efficient method for transmitting the AIDS virus, is becoming more common.

23.   Ventilation ducts, Frank said, provide a highly efficient method for distributing air throughout the house.

24.   While developing an alternative to lasers for the company, Brenner said he discovered a more efficient method for coupling light into a single fiber.

25.   He added that IT is the most efficient method of disseminating information around the globe.

26.   The four bond issues this year have been open to bidding by underwriter groups, which ensures a more efficient method of issuing securities, he said.

27.   The rule allows them to catch more fish and use more efficient methods for fishing.

28.   There the rational expectations hypothesis is used to identify the most efficient statistical methods for estimating economic relations where expectations are the key components.

29.   This is a less efficient growing method, but it produces a root that looks like the wild variety.

30.   Rothenberg said the football associations in countries where hooliganism is rife had efficient methods of preventing known troublemakers from buying Cup tickets.