单选题
What can be learned about the on-line doctors' visits?
A、
They are a quite promising business.
B、
They are funded by the local government.
C、
They are welcomed by all the patients.
D、
They are very much under experimentation.
【正确答案】
D
【答案解析】
文中说道并非所有的医生都支持该项目，且在线看病还不能完全替代医院看病。其是否能达到预期目的也有待观察，所以正确答案是D(仍然处于实验阶段)。
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