The main idea of this passage is ______.A.what the future of health care is likeB.how onli

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The main idea of this passage is ______.

A.what the future of health care is like

B.how online doctors operate on patients

C.first-aid kit found wider uses

D.bandwidth is the limiting factor for transmitting images

请帮忙给出正确答案和分析,谢谢!

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