单项选择题
A.keeps its promise B.provides the same products C.sells its products at a low price D.delivers its products without delay
A.Types of Doctors in the United States B.Health Care in the United States and Britain C.Treatment of Sick Children in the United States D.Medical Insurance in the United States and Britain
A.be treated if they have an insurance B.make an appointment with a specialist only C.receive treatment even without insurance D.normally go to see an expert for treatment