20.
(A) as the economy grew more sophisticated
(B) were swept aside
(C) less than 2 % of them
(D) it creates new and better ones
(E) has displaced many of the mid-skill jobs
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統計: A(210), B(16), C(27), D(12), E(4) #889487
統計: A(210), B(16), C(27), D(12), E(4) #889487