48. What do the blasters need to do in preparing for the demolition of a building, according to the
passage?
(A) Study the structure of the building.
(B) Hire an experienced tour guide.
(C) Make a miniature of the building.
(D) Consult the original architect.
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統計: A(18), B(1), C(5), D(3), E(0) #2737444
統計: A(18), B(1), C(5), D(3), E(0) #2737444