39 The police set up a _____across the entrance to the mountain for fear that more rocks would fall after the
catastrophic earthquake.
(A) scheme
(B) monument
(C) committee
(D) barricade
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統計: A(46), B(82), C(90), D(631), E(0) #3255910
統計: A(46), B(82), C(90), D(631), E(0) #3255910