ACCORDING TO THE PASSAGE, HOW DO THE FIBERSCOPES USED TODAY DIFFER FROM THOSEUSED IN FIVE YEARS AGO
Câu 41 (TH):
According to the passage, how do the fiberscopes used today differ from those
used in five years ago?
A.
They use brighter light.
B.
They are longer.
C.
They contain more fibers.
D.
They are larger in diameter.