问题 单项选择题 B型题

无力性便秘患者可选用的治疗膳食是()

A.少渣半流食

B.低盐膳食

C.高纤维膳食

D.高支链氨基酸膳食

E.低铜膳食

答案

参考答案:C

解析:1.急性肾炎宜选用低盐膳食。通过调整膳食中的钠盐摄入量纠正水、钠潴留,维持机体水、电解质的平衡。低盐膳食亦适用于高血压、心力衰竭、妊娠高血压综合征以及各种原因引起的水、钠潴留患者。 2.慢性胃炎患者根据病情,临床饮食医嘱是少渣软食或低脂少渣软食或少渣半流食。 3.高纤维膳食可增加膳食中的纤维素,从而增加粪便体积及含水量、刺激肠道蠕动,降低肠腔的压力,促进粪便中胆汁酸和肠道有害物质的排出。适用对象:便秘、肛门手术后恢复期、心血管疾病、糖尿病、肥胖病、胆囊炎、胆结石患者。 4.低盐膳食通过调整膳食中的钠盐摄入量来纠正水、钠潴留以维持机体水、电解质的平衡。适用对象:高血压、心力衰竭、急性肾炎、妊娠高血压综合征,各种原因引起的水、钠潴留患者。 5.肝性脑病是代谢紊乱引起氨在血液中和脑中大量结聚而致的一种中枢神经系统功能性改变,与蛋白质、脂肪代谢紊乱有关。应选择产氨少、含支链氨基酸丰富的食物。 6.肝豆状核变性又称威尔逊病,是一种常染色体隐性遗传的铜代谢障碍疾病,由于铜在体内过度蓄积,损害肝、脑等器官而致病

阅读理解

Dear sir ,

I have travel every day from Souk Road to the airport. Two buses travel along the routes: the(路线): the number 49 and the number 16. But by the time the number 16 bus reaches Souk Road, it is always full, so I can’t get on it, I have to wait for the number 49 because sometimes there are empty seats on it.

The timetable says that there are buses from Souk Road to the airport every ten minutes. If this is true, why do I have to wait half an hour for a bus nearly every day?

The rules say that if there are empty seats on a bus, the bus must stop at every stop where people are waiting Why do the half-empty buses go straight(一直)past me when I am standing at bus stop?

The rules say that no bus may carry more than 40 seated passengers and 20 standing passengers. Yesterday I was the first to get off the bus when it reached the airport. I counted the other passengers as they got off. There were 129 people.

It is clear that our bus companies break the rules and think little of their passengers. Can nothing be done to make your service(服务) better?

Yours

Tired passenger

小题1:This passage is __________.

A.a message

B.a talk

C.a story

D.a letter小题2:The writer has to take Bus No. 49 because______.

A.it arrives on time

B.it is not always full

C.it travels faster

D.it has fewer seats on it小题3:How long does the writer usually have to wait for a bus?

A.Ten minutes

B.One hour

C.Half an hour

D.Nearly a day小题4:The rules say that each bus may carry ________ passengers at most.

A.twenty

B.forty

C.sixty

D.one hundred and twenty-nine小题5:From the passage we can see that__________.

A.the bus service was poor

B.no passengers took their buses

C.no buses except the No. 49 bus passed Souk Road

D.the writer was always the first to get on bus

问答题 简答题