黄女士，55岁，因脑出血昏迷一年余，每日给鼻饲、翻身等处理，眼睑不能闭合，有尿失禁，已留置尿管。
对黄女士留置尿管的护理应注意（）。
A.保持尿管通畅防止逆行感染
B.每天倾倒一次引流袋
C.每日更换一次尿管
D.每周进行一次膀胱冲洗
E.每周更换一次引流袋
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随着改革开放和地级市的设立，威海不但经济高速增长，而且成为最适合人类居住的沿海开放城市
A．威海→深圳→海南岛→南宁
B．海南岛→深圳→威海→南宁
C．深圳→威海→海南岛→南宁
D．深圳→海南岛→威海→南宁
I once had a teacher whose husband died suddenly of heart attack．About a week after his death, she some of her thoughts with a classroom of students．As the late afternoon sunlight shone the classroom windows, and when the class was nearly over, she a few things aside on the edge of her desk and sat down. With a look on her face，she paused and said，“ class is over，I’d like to share with all of you a deep which I feel is very important．Each of us is put here on to learn，share，love，appreciate and give of ourselves． of us knows when this fantastic experience will ．It can be taken away at any moment．Perhaps this is the God’s of telling us that we must make the of every single day.” Her eyes were beginning to ，but she went on，“So I would like you all to make me a ：From now on，on your way to school，or on your way home，find something beautiful to ．It doesn't have to be something you see．It could be a of freshly baked bread floating out of someone’s house， or it could be the sound of the soft rustling(沙沙作响)the leaves in the trees…．Please look for these things， and them，for at anytime it can all be taken away．’’ The class was completely ．We all picked up our books and went out of the room silently．That ，I observed many more beautiful things on my way home from school than usual． Remember：Life is not by the number of breaths we take，but by the moments that take our breath away．
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王熙凤协理宁国府，忙得茶饭也没工夫吃得，坐卧不能清净，心中却十分欢喜。这是为什么？
下列民族中哪些属于贵州的世居民族？（）。
A、黎族
B、瑶族
C、土族
D、满族
假设一家银行，今年的税后收入为20000万元，资产总额为1000000万元，股东权益总额为300000万元，则资产收益率为( )。
A．0.02
B．0.25
C．0.03
D．0.35