A fuel cell is a device that produces electricity from chemical fuels， in just one step.Unlike batteries， fuel cells don’t run down or need recharging.As long as there is a constant source of fuel and oxygen， fuel cells will continue to generate power.And

A fuel cell is a device that produces electricity from chemical fuels， in just one step.Unlike batteries， fuel cells don’t run down or need recharging.As long as there is a constant source of fuel and oxygen， fuel cells will continue to generate power.And they don’t burn the fuel – the electricity is produced directly.
A.正确
B.错误
正确答案：正确