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【单选题】
患儿男,2岁。诊断为营养性缺铁性贫血,有代谢检查的指标中,不可能出现A.
血清铁减少
B.
总铁结合力降低
C.
血清铁蛋白降低
D.
转铁蛋白饱和度降低
E.
储存铁减少
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【简答题】STEP1 Li Hua: Good morning, Mr. Black . Did you sleep well last night? Black: I slept like a log. And you? Li Hua: Just fine. I think we should discuss today's ________ . Black: OK. Li Hua: We'll driv...
【简答题】朗读以下短文 Early to bed, early to rise, makes a man healthy, wealthy and wise. This is an old English saying. Have you heard of it before? It means that we must go to bed early and get up early in the mor...
【简答题】一、根据句意及首字母提示补全单词。 1 . — Can you hear me, Mary? — Sorry , there’s too much n ______ here. 2.Don ’ t throw litter about. We should protect our e________. 3.My brother likes collecting old things, e_____...
【简答题】(2) Early to bed, early to rise, makes a man healthy, wealthy and wise . This is an old English saying. Have you heard of it before? It means that we must go to bed early and get up early in the morni...
【单选题】下列关于摩尔吸光系数的说法中,错误的是( )
A.
摩尔吸光系数是一摩尔有色物质的吸光度
B.
摩尔吸光系数与波长有关
C.
摩尔吸光系数与浓度无关
D.
通常不同的有色物质，其最大吸收波长处的摩尔吸光系数不同
【简答题】This is an old English saying. Do you know it before? It says that we must go to bed early and get up early in the morning. Then we should be healthy. We should also be rich(wealthy) and clever (wise)...
【单选题】下列关于摩尔吸光系数的说法中,错误的是( )。
A.
摩尔吸光系数是1mol有色物质的吸光度
B.
摩尔吸光系数与波长有关
C.
不同的有色物质,其摩尔吸光系数不同
D.
摩尔吸光系数与浓度无关
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