某人驾驶一辆小轿车要做32000千米的长途旅行(路面基本相同)。除车上装着四只轮胎,又带了一只备用胎,为了使五只轮胎磨损程度相同,司机就有规律地把五只胎轮换使用,到达终点时每只轮胎行驶多少千米?( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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