室内空气质量标准中苯、甲苯、二甲苯的首选测定方法是()。 ["分光光度法","气相色谱法","荧光光度法","电化学法","检气管法"]
某城市拟建设一座设计流量为5m3/s的雨水泵站,进入雨水泵站的雨水干管埋深为4m,泵站出水就近排入河道,则其水泵选型下列哪几项比较适合?() ["潜水轴流泵","潜水离心泵","潜水多级泵","潜水混流泵"]
下列哪种类型的金融情报机构,通常是由检察部门负责接收可疑交易活动报告?() ["行政型","执法型","司法型或诉讼型","混合型"]
最早用于中药储存中杀虫、杀霉的化学药剂是()。 ["磷化铝","硫黄","氯化苦","环氧乙烷","挥发油熏蒸技术"]
室内空气质量标准规定甲苯的限值是()。 ["≤0.10mg/m3","≤0.15mg/m3","≤0.20mg/m3","≤0.25mg/m3","≤0.30mg/m3"]
白粉菌的菌丝特点是()。