13 As the mountains of Taiwan are a barrier to coast-to-coast transportation, vehicular travel is vulnerable to
traffic and crowding. The high speed and capacity of the Puyuma Express helps to ______ this problem.
(A) soften
(B) alleviate
(C) exacerbate
(D) aggravate
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統計: A(14), B(44), C(9), D(3), E(0) #1543278
統計: A(14), B(44), C(9), D(3), E(0) #1543278