【单选题】患者女,56岁,因风湿性心脏病给予地高辛0.5mg/d,连续治疗1个月后,病情好转,但患者出现恶心、呕吐、黄视等症状。经检查,心电图P-P间期和P-R间期延长;地高辛血浓度为3.2ng/ml。诊断为地高辛中毒。除立即停药外,还应采用什么药治疗
【单选题】患者,女,56岁,因风湿性心脏病给予地高辛0.5mg/d,连续治疗1个月后,病情好转,但病人出现恶心呕吐、视物发黄等症状。心电图检查示P-P间期和P-R间期延长。地高辛血浓度为3.2ng/mL。诊断为地高辛中毒。除立即停药外,还应采用什么药物治疗
【单选题】关于抽样类型的说法错误的是
A.
从大的方面看,各种抽样都可以归为概率抽样(随机抽样)与非概率抽样(非随机抽样)两大类
B.
概率抽样是依据概率论的基本原理,按照等概率原则进行的抽样,因而它能够避免抽样过程中的人为误差,保证样本的代表性
C.
非概率抽样则主要是依据研究者的主观意愿、判断或是否方便等因素来抽取对象,它不考虑抽样中的等概率原则,因而往往产生较大的误差,难以保证样本的代表性
D.
领导想从班级中抽取几名学生进行调查,由于不熟悉班级学生,领导便按学号随便点了几名同学,这就是非随机抽样(非概率抽样);如果他对班干部比较熟悉,于是直接让全体班干部参加调查,这就是随机抽样(概率抽样)
【单选题】患者,女性,56岁。因风湿性心脏病给予地高辛0.5mg/d,连续治疗1个月后,病情好转,但病人出现恶心呕吐,黄视等症状。经检查:心电图:PP间期和PR间期延长;地高辛血浓度为3.2ng/ml诊断为地高辛中毒。除立即停药外,还应采用什么药治疗
【简答题】Fish contains lost of omega-3 fatty acids.These fatty acids have been shown to help pr heart disease,lower blood pressure and reduce the risk of strokes.Researchers suggest that these benefits of...
【简答题】国家间出现矛盾、分歧和争端,要通过平等协商以和平方式处理,以最大诚意和耐心,坚持____、对话促安全。
【单选题】When bacteria growing at 20°C are warmed to 30°C, are they more likely to synthesize membrane lipids with saturated fatty acids and ( ).
A.
Short-chain fatty acids
B.
Middle-chain fatty acids
C.
Long-chain fatty acids
【单选题】患者,女,56岁。因风湿性心脏病给予地高辛0.5mg/d,连续治疗1个月后,病情好转,但患者出现恶心、呕吐、黄视等症状。经检查:心电图显示P-P间期和P-R间期延长,地高辛血浓度为3.2ng/ml。诊断为地高辛中毒。除立即停药外,还应采用()
【单选题】患者女,56岁,因风湿性心脏病给予地高辛0.5mg/d,连续治疗1个月后,病情好转,但病人出现恶心呕吐,黄视等症状。经检查:心电图:P-P间期和P-R间期延长;地高辛血浓度为3.2ng/ml。诊断为地高辛中毒。除立即停药外,还应采用什么药治疗
【多选题】What occurs during desaturation of fatty acids?
A.
Palmitate and stearate serve as precursors of the two most common monounsaturated fatty acids of animal tissues: palmitoleate, 16:1(Δ 9 ), and oleate, 18:1(Δ 9 ); both of these fatty acids have a single cis double bond between C-9 and C-10.
B.
The double bond is introduced into the fatty acid chain by an oxidative reaction catalyzed by fatty acyl–CoA desaturase, a mixed-function oxidase. Two different substrates, the fatty acid and NADPH, simultaneously undergo twoelectron oxidations.
C.
The path of electron flow includes a cytochrome (cytochrome b 5 ) and a flavoprotein (cytochrome b 5 reductase), both of which, like fatty acyl–CoA desaturase, are in the smooth ER.
D.
In plants, oleate is produced by a stearoyl-ACP desaturase (SCD) that uses reduced ferredoxin as the electron donor in the chloroplast stroma.