用火焰原子吸收光谱法测食品含钙量,受磷的干扰较大,国标法确定的用于抑制磷干扰的物质是() ["10%氧化铜","20g\/L氧化镧","10g\/L氧化铜","10%氧化镁","20g\/L氧化镁"]
男婴1月,气急,唇周轻度发绀,胸片发现左胸有较多空泡状病变,为进一步明确诊断,首选下列何种检查() ["X线胸透","胸部CT","经胃管注入钡剂","MRI","胃镜检查"]
猪苓汤证中的不得眠是() ["A.心烦不得眠,小便不利,或见下利,咳而呕渴","B.虚烦不得眠,若剧者必反复颠倒,心中懊恼","C.心中烦、不得卧,口干咽燥,舌红少苔,脉沉细数","D.烦燥不得卧,汗出,自利,自欲吐,脉微细沉","E.昼日烦躁不得眠,或见夜而安静,不呕,不渴,无表证,脉沉微"]
男性,10岁,平时体健,常于进食蚕豆后即有面色苍白、巩膜黄染、小便深褐色等症状,发作时查:血红蛋白55g/L,尿隐血试验阳性,该患者最可能的诊断是()。 ["丙酮酸激酶缺陷症","葡萄糖-6-磷酸脱氢酶缺陷症","遗传性口形红细胞增多症","遗传性球形细胞增多症","遗传性椭圆红细胞增多症"]
已知盐酸标准溶液的滴定度THCL=0.003646g/ml,则该标准溶液的THCL/Ca(OH)2是[Ca(OH)2的分子量为74.10g]() ["0.003705g\/ml","0.037050g\/ml","0.370500g\/ml","3.705000g\/ml","37.050000g\/ml"]
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