THE AUTHOR USES THE EXPRESSION "HAVE OPENED A WINDOW" TO INDICATE THAT THE USEOF OPTICAL FIBERS_____
Câu 37 (TH):
The author uses the expression "have opened a window" to indicate that the use
of optical fibers_____.
A.
has enabled scientists to make amazing discoveries
B.
sometimes requires a surgical incision
C.
allows doctors to see inside the body without major surgery
D.
has been unknown to the general public until quite recently
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