CHICAGO (AP) _ Grain futures were mostly higher Wednesday on the Chicago Board of Trade. Dec. corn lost 0.75 cent at $4.49 a bushel. Dec. wheat gained 8.25 cents at $6.01 a bushel. Dec. oats was up 6 cents at $3.51 a bushel. Nov. soybeans was up 10.25 cents at $12.30 a bushel. Beef was...