34. According to this article, what are the drones used for in the U.K.?
(A) To deal with illegal activities.
(B) To improve manufacturing processes.
(C) To improve public health.
(D) To provide ground transportation.
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統計: A(369), B(10), C(11), D(13), E(0) #2363073
統計: A(369), B(10), C(11), D(13), E(0) #2363073