GSM系统由（）、（）、（）三个相互联接的主要子系统构成。

女，22岁。3周前有腹泻史，未引起患者的注意。昨日出现四肢无力，逐渐加重。查体：神志清楚，双睑闭合不能，四肢肌力Ⅱ级，肌张力减低，无感觉障碍。

以下哪项治疗不正确？（）

A.常规气管切开保持呼吸道通畅

B.对症、支持及针对病因治疗

C.下肢瘫痪出现足下垂可用夹板固定

D.血浆交换可缩短患者病程

E.延髓麻痹时可早期鼻饲

阐述分水岭脑梗死的分型及临床表现。

下列哪些金融资产应当计提减值准备（）

A.以公允价值计量且其变动计入当期损益的金融资产

B.持有至到期的金融资产

C.贷款和应收款项

D.可供出售的金融资产

A分行和B分行分别辖属两个地级市，A分行自行审批位于B市的某项目贷款，指出责任人违反的条款及应给予的处分档次。（）

A、违规发放异地贷款

B、记大过至开除

C、记过至撤职

D、记过至记大过

All her life, my mother wanted busy children. It was very important that her house should remain at all times clean and tidy.
You could turn your back for a moment in my mother’s house, leave a half written letter on the dining table, a magazine open on the chair, and turn around to find that my mother had "put it back where it belonged," as she explained. My wife, on one of her first visits to my mother’s house, placed a packet of biscuits on an end table and went to the kitchen to fetch a drink. When she returned, she found the packet had been removed. Confused, she set down her drink and went back to the kitchen for more biscuits, only to return to find that her drink had disappeared. Up to then she had guessed that everyone in my family held onto their drinks so as not to make water rings on the end tables. Now she knows better.
These disappearances had a confusing effect on our family. We were all inclined to forgetfulness, and it was common for one of us, upon returning from the bathroom, to find the every sign of his work in progress had disappeared suddenly. "Do you remember what I was doing" was a question frequently asked, but rarely answered.
Now my sister has developed a secondhand love of clean windows, and my brother does the cleaning in his house, perhaps to avoid having to be the one to lift his feet. I try not to think about it too much, but I have at this later time started to dust the furniture once a week.

This passage mainly tells us that ______.

A．my mother often made us confused

B．my family members had a poor memory

C．my mother helped us to form a good habit

D．my wife was surprised when she visited my mother