71.   Among promising treatments are those using mock estrogens, chemicals that act like estrogen in fending off heart disease and menopausal symptoms, but do not increase cancer risks.

72.   America Online said Microsoft was acting like a hacker, connecting to its system without authorization.

73.   An orange ring inside the carousel acts like the third rail in a subway system, carrying electronic data to the computers.

74.   Analysis at the genetic level also let him determine whether the Jurua acted like a species barrier, as Wallace had hypothesized.

75.   Amtrak is acting more like an airline, discussing corporate discounts and considering a railroad equivalent of frequent flier plans.

76.   And act like Nixon.

77.   An herbal stimulant that acts like an amphetamine, ephedra is used by players seeking to lose weight or get a quick burst of energy.

78.   And Chavez could do his part by acting like a democrat.

79.   An older brother Pfeifer can act like an older brother to his bands.

80.   And all acted like thugs, taunting foreign players, shoving, elbowing and generally perpetuating the Ugly American image.