阿摩線上測驗
5. There are a few factors leading to the rise in airfare prices. Jet fuel prices increased 60 percent in 2021, and higher _______ are expected to continue.
(A) volumes
(C) rates
(B) shares
(D) ratios
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統計： A(0), B(0), C(1), D(0), E(0) #3364169
統計： A(0), B(0), C(1), D(0), E(0) #3364169
