阿摩線上測驗
1. The Taiwan High Speed Rail ____ the efficiency of travel between the north and south for nearly twenty years.
(A) improves
(B) improved
(C) has improved
(D) is improving
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統計： A(1), B(0), C(3), D(1), E(0) #4066763
統計： A(1), B(0), C(3), D(1), E(0) #4066763
