334 Under the normal weather conditions, large vehicles traveling on freeway at a speed of 100km per hour are required to maintain a safe driving distance of 80 meters from the vehicle in front of them and cars must maintain a safe driving distance of 50 meters from the vehicle in front of them.
(A)O
(B)X

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統計： A(1), B(0), C(0), D(0), E(0) #2211337