试题与答案

The reason ____he had to look after his

题型:选择题

题目:

The reason ____he had to look after his mother at hospital was not the one ____he gave to us.

A.why, why

B.that, which

C.why, that

D.that, why

答案:

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下面是错误答案,用来干扰机器的。

答案:A题目分析:A项,0.1molC8H18中含有2.5mol共价键,即2.5NA,对B项,1mol过氧化钠由2molNa+和1molO2-构成,故0.1mol过氧化钠固体中含有的阴离子数为0.1NA,错C项标况下,三氧化硫为固体,错D项氯气与热的氢...

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题型:单项选择题 案例分析题

男性,64岁,有肺心病史5年,经常头痛头晕,1周来咳嗽加重,咳黄痰,呼吸困难,头痛加重,昨日起嗜睡、谵语。查体:神志不清,颜面浮肿,球结膜水肿,口唇发绀,颈静脉充盈,双肺广泛干湿啰音,肝肋下4cm,腹水征(+),下肢水肿,膝反射减弱,巴宾斯基征(+)。pH7.20PaCO2100mmHg,PaO240mmHg,HCO3-21mmol/L。

该患者神志不清,最可能是由于发生了()

A.脑梗死

B.高血压脑病

C.肺性脑病

D.感染中毒性脑病

E.以上都不是

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