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Question 19: A. older antibiotics are being progressively replaced by broader-spectrum ones B. broader-spectrum antibiotics progressively re...
Đề bài
Question 19:
A. older antibiotics are being progressively replaced by broader-spectrum ones
B. broader-spectrum antibiotics progressively replaced the older ones being used
C. the replacement of older antibiotics are increasingly broader-spectrum ones
D. broader-spectrum ones are older antibiotics being progressively replaced
