GLOBAL MARKETS-Dollar drifts up as Greek worries weigh on Europe

* Greek debt worries, Ukraine conflict sap risk appetite * China CPI hits 5-year low, reinforces sign of weakness * Dollar on the rise again as yields nudge higher By Marc Jones LONDON, Feb 10 (Reuters) - Nerves over Greece's future in the euro and the conflict in Ukraine dragged on European markets on Tuesday, while bets on the likelihood of a U.S. interest rate hike nudged the dollar higher and oil prices held steady after a rebound. European stocks fell 0.3 percent and th