13. Many middle-class American workers are losing their jobs, because corporations are ______ their high-tech work to Asia.
(A) upsourcing
(B) downsourcing
(C) outsourcing
(D) insourcing
(A) upsourcing
(B) downsourcing
(C) outsourcing
(D) insourcing
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統計: 尚無統計資料