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London's benchmark FTSE 100 index won 0.1 percent to 7,187.43 points compared with the closing level on Tuesday, which was a record high.
In the eurozone Wednesday, Frankfurt's DAX 30 index opened with a gain of 0.2 percent at 11,608.4 points and the Paris CAC 40 climbed 0.3 percent to 4,912.95.