8岁患儿，水肿2个月，在外院诊断为原发性肾病综合征，用泼尼松治_爱下问搜题

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问题单项选择题

8岁患儿，水肿2个月，在外院诊断为原发性肾病综合征，用泼尼松治疗4周，现尿蛋白仍+++。患儿一直为低盐饮食，间断用呋塞米，2天前出现呕吐、腹泻，1天来患儿开始厌食、乏力、嗜睡、血压下降。此患者首先应做的检查是（）

A.血常规

B.尿常规

C.血气分析

D.血电解质

E.头颅CT

答案

参考答案：D

阅读理解

March 25 is the 17th National Day of Education on the Safety of Elementary and Middle School Students. The theme of the day this year is to give students more knowledge about how to keep safe.
How can you keep yourselves safe? Here are some suggestions.
When there is a fire:
Shout out “Fire”! Call 119! Try to find a safe exit and get away quickly. Don’t use a lift. Use a piece of cloth to cover your mouth and nose.
When there is an earthquake at school:
Stay calm. Follow the teachers’ instructions. Quickly move under the desk. Don’t jump out of
windows or run out.
When you are on the street:
Wait for the green traffic light. Look left and right before crossing the street. Don’t run across
the street.
When you are eating:
Wash fruits and vegetables carefully before eating them. Check the expiration dates(保质期) of
the food. Don’t eat the food if it looks or smells bad.
When you are at school:
Take care not to fall down or hurt yourself. Don’t run, jump or push while going upstairs or
downstairs. Take care of yourself all the time.

Suggestions on 小题1:
Situations	What you should do	What you shouldn’t do
Be on 小题2:	Shout out “fire”! 小题3: 119! Find a safe exit. Get away quickly. Use a piece of cloth to cover your mouth and nose.	Take a lift.
Have an earthquake	Stay calm. Follow the teachers’ instructions. Move 小题4: under the desk.	Jump 小题5: windows. Run out.
Be on the street	Wait for the green traffic light. Look left and right before you 小题6: the street.	Run acrossthe street.
While 小题7:	Wash fruits and vegetables 小题8:. Check the expiration dates.	Eat 小题9: food.
While at school	Look 小题10: yourself at any time.	Jump, run or push while going upstairs or downstairs.

判断题

皮带煤的人工采样属于系统采样方法。