While ordinary Xinyang Maojian sells at two hundred yuan per kilo, a three-gram cup of Daqi can cost 804 yuan, which is a(n) that someone can't afford. A: extravagance B: magnificence C: luxury D: extravagance
While ordinary Xinyang Maojian sells at two hundred yuan per kilo, a three-gram cup of Daqi can cost 804 yuan, which is a(n) that someone can't afford. A: extravagance B: magnificence C: luxury D: extravagance
以下关于空气质量指数和空气质量状况描述正确的是（）？ A: AAQI：0—50为优良 B: BAQI：101—150为轻度污染 C: CAQI：151—200为中度污染 D: DAQI：201—300为重度污染；大于300为严重污染
以下关于空气质量指数和空气质量状况描述正确的是（）？ A: AAQI：0—50为优良 B: BAQI：101—150为轻度污染 C: CAQI：151—200为中度污染 D: DAQI：201—300为重度污染；大于300为严重污染
1