46. What trend has emerged in the American economy regarding product offerings?
(A) Increasing product lines
(B) Streamlining product offerings
(C) Diversifying into new markets
(D) Expanding globally
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統計: A(36), B(285), C(20), D(14), E(0) #3261625
統計: A(36), B(285), C(20), D(14), E(0) #3261625