下列浓度相同的化合物水溶液中,水溶液的pH值最高的化合物是() ["NaCl","Na2<\/sub>CO3<\/sub>","NaHCO3<\/sub>","NaH2<\/sub>PO","CH3<\/sub>COONa"]
气性坏疽最关键的治疗措施是() ["大剂量青霉素","高压氧疗法","输血、输液","补充足够的营养","紧急手术处理"]
评价不同型号汽车的经济型用()评价。 ["蚝油率","百公里油耗","经济车速","尾气排放"]
粮油检验员()向社会透露检验秘密。
25T型客车检修规程规定,用500V级兆欧表测量DCll0v隔离变压器的绝缘电阻值应大于() ["2MΩ","3MΩ","4MΩ","5M&Omega"]
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