63. What is the maximum number of authorized engineering or public works personnel allowed to ride in a small truck:
(A) 5 persons
(B) 8 persons
(C) 4 persons.
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統計: A(0), B(3), C(0), D(0), E(0) #2214524
統計: A(0), B(3), C(0), D(0), E(0) #2214524