【单选题】Children, week, mild dehydration due to vomiting, diarrhoea, in the actual fluid rehydration, diarrhoea loss caused by dehydration of the total amount of fluid rehydration is
【单选题】A child is week, and has mild dehydration due to vomiting and diarrhoea, in the actual fluid rehydration, diarrhoea loss caused by dehydration of the total amount of fluid rehydration is