【多选题】【消耗次数：1】
汽车排放性检测主要检测必尾气排放中的（）等指标。
①
CO
②
NOX
③
HC
④
烟度
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相关题目
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汽车排放污染物检测方法中，（）是当今世界最为科学并得以广泛使用的汽车排放试验方法，是汽车排放检测规范的发展趋势，此方法一般多用于新车的型式核准试验和生产一致性检查。
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