248. When a vehicle is driving through a curve, the higher the speed, thecentrifugal force generated is (A) greater (B) smaller (C) unchanged.

258.If a person refuses to obey the directions or inspections of police officersperforming traffic duties or personnel executing traffic inspections according tolaw and is caught on the spot, the penalty shall be (A) suspension of thedriver's license for 1 month (B) suspension of the driver's license for 2 months(C) a fine and demerit points.