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4,18,56,130,( )。
计算题: 硅钼黄光度法测定水中可溶性二氧化硅,取水样50.0ml按操作要求处理后,在波长410nm处比色,测得其吸光度为0.235,空白吸光度为0.025,标准曲线回归方程为)Y=0.205x+0.001,试求水中二氧化硅的浓度。
属于双胍类降糖药有()
膳食中的必需脂肪酸包括()
B类企业可付汇额度不足的,金融机构应凭外汇局出具的《登记表》办理付汇或开证手续,同时实施电子数据核查。
一辆油罐车在A省境内的高速公路上与一辆大客车追尾,引发油罐车爆燃,造成20人死亡。该油罐车中所载溶剂油是自B省发往C省某企业的货物。依据《生产安全事故报告和调查处理条例》的规定。负责该起事故调查的主体是( )。
PCR
室外抹灰每个检验批每()应至少抽查一处,每处不得少于()。
在风险管理中,风险识别的主要内容包括()。
以下各项中,属于税基侵蚀和利润转移项目(BEPS)行动计划的有()。
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