Mark the letter A,B,C or D on your answer sheet to indicate the word that is CLOSEST in meaning to the underlined part in each of the following questions.
Work efficiency has increased exponentially each year, thanks to computers and their ability to multitask
A. at a very fast rate
B. slightly
C. constantly
D. at a very slow rate
Đáp án : A
exponentially : theo số mũ = at a very fast rate
At a very fast rate: rất nhanh >< at a very low rate
Slightly: nhẹ, constantly : liên tục
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