The Canadian dollar strengthened against the greenback on Tuesday, and the yield on benchmark government debt slipped. The loonie was trading 0% higher at C$1.4007 to the greenback, or 71.39 U.S. cents, after trading in a range of 1.3976 to 1.4036. Canadian government 10-year bond yields fell 3.1 basis points to 3.247%. The yield on similar U.S. government benchmark debt fell to 4.3413%. U.S. December crude futures fell 19 cents to $68.97 a barrel on Tuesday. Canada's annual inflation rate accelerated to 2% in October, up from 1.6% in September, Statistics Canada said. Analysts polled by Reuters had expected an annual rate of 1.9%