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问题 单项选择题 A1型题

关于肾衰竭指数描述，错误的是（）

A.肾前性肾衰竭指数一般<1

B.可区分肾前性肾衰竭和肾后性肾衰竭

C.急性肾小管坏死肾衰竭指数多>1

D.与血钠水平有关

E.肾后性肾衰竭指数多>1

答案

参考答案：D

解析：肾衰竭指数=尿钠×血肌酐／尿肌酐，故与血钠水平无关。故选择D。

完形填空

Scientists have developed a non-stick chewing gum(口香糖). The new gum can   小题1: (remove) easily from pavements, shoes and clothes. It’s the result of polymer (聚合体) research at the University of Bristol and could be launched commercially in 2008.   小题2:  it catches on(流行), the product will solve  小题3:  major headache for present authorities around the world.

“A great 小题4:  (disadvantage) of our Clean Gum is that it is easy to remove and has the potential to be 小题5: (environment) degradable (可降解的),” said Terence Cosgrove, a professor of chemistry  小题6:  helped to found a company called Revolymer to commercialize the technology.

Today’s chewing gums are made  小题7:synthetic latex(人工制造的乳液), which is resistant to the weather and is strongly sticky. The new gum adds a special polymer to change its properties(特性),    小题8:  (make) it far less sticky.

In two street trials,   小题9:  commercial gums remained stuck to the pavement   小题10:    Clean Gum came away naturally in all cases.

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单项选择题

放射性核素治疗骨肿瘤后2～10天骨痛加剧提示（）

A.治疗无效

B.将取得较好疗效

C.应采用化疗

D.应采用放疗外照射

E.病情恶化
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