By Joe Cash BEIJING (Reuters) -China attacked U.S. President-elect Donald Trump's pledge to slap additional tariffs on Chinese goods over fentanyl flows, saying his incoming administration was pushing the blame for America's opioid crisis onto China.

While China could offset American tariffs by letting its currency fall, that might endanger Beijing’s recent efforts to stabilize the economy.

Trump announced plans to impose 10% tariffs on Chinese goods “above any additional tariffs,” after blaming the country for the inflow of illegal fentanyl into the U.S.