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【简答题】
在上海车展上，来自全世界的汽车公司发布了它们的最新款汽车。(unveil)
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皮皮学刷刷变学霸
举一反三
【单选题】What is the author's purpose in writing this article?
A.
To criticize the traditional view of the medical care.
B.
To compare the differences between the modern medical care and the traditional medical care.
C.
To tell us the change of the focus of medical care.
D.
To tell us the importance of the medical care.