（）是一种有机阳离子聚合物的混合物，分子链节含有多个阳离子基团，能以网络形式强力吸附

甲公司通过电视发布广告，称其有100辆某型号汽车，每辆价格15万元，广告有效期10天。乙公司看到该则广告后于第3天自带金额为300万元的汇票去甲公司买车，但甲公司的车此时已全部售完。无货可供。依照法律规定，有关本案的正确表述是：( )。

A．甲发布广告的行为构成要约，乙的行为构成承诺，甲不承担违约责任

B．甲发布广告的行为构成要约，乙的行为构成承诺，甲应补偿乙实际支出的费用损失

C．甲发布广告的行为构成要约，但乙的行为不构成承诺，甲不承担民事责任

D．甲发布广告的行为不构成要约，乙的行为不构成承诺，甲不承担民事责任

阅读理解

     While I was waiting outside my wife's office building for her to get out of work.I saw a bum (流浪乞丐) coming my way.

     "I hope he won't ask me for any money, " I thought.

     He came and sat in front of the bus stop.After a few minutes he spoke."That's a very pretty car, " he

said.He was in rags, but he had an air of dignity (尊严) about him.

     I gave him a smile and continued cleaning my car.

     He sat there quietly as I worked.The expected asking for money never came.As the silence between

us widened, it seemed that a voice inside me said, "Ask him if he needs any help."

     "Do you need any help?" I asked.

     He answered in three simple but meaningful words that I shall never forget.We  often look for wisdom

in great men and women, and we expect it from those of higher learning and achievements.I expected

nothing but an outstretched (伸出的) dirty hand from him, but he said three words that shook me.

     "Don't we all?" he said.

     I_was_feeling_high, successful_and_important_above_a_bum_in_the_street, until those three words

hit me like a shot.

     Don't we all?

     I needed help.Maybe not for a bus fare or for a place to sleep, but I needed help.I reached in my

wallet and gave him not only enough for a bus fare, but enough to get a warm meal and shelter for the

day.Those three little words still ring true.No matter how much you have, you need help, too.No matter

how little you have, no matter how loaded you are with problems, even without money or a place to

sleep, you can give help.

     Maybe God looked down, called an angel, dressed him like a bum, and then said, "Go to that man

cleaning the car.That man needs help."

     Don't we all?

1. The writer was near the bus stop________.

A. to meet the bum  

B. to wait for his wife

C. to wait for a bus  

D. to clean his car

2. At the sight of the bum, the writer________.

A. asked him if he needed any help

B. hoped to give the bum some money

C. wished the bum not to ask him for money

D. pretended to be cleaning his car

3. The underlined part in the passage means "________".

A. I thought I'm better in any way than the bum

B. I felt the bum is as good in some ways as I am

C. I felt I liked the bum very much

D. I thought I should respect the bum

4. What does the story mainly tell us?

A. Those who are poor are in greater need of help.

B. Anybody should give help to others.

C. Poor as a man may be, he has dignity.

D. Whatever we are, we need help.

男性患者，查体发现尿糖5g／L

以下错误的选项是（）

A.询问是否服用丙磺舒

B.查24小时尿糖定量

C.复查尿常规

D.应同时查血糖

E.诊断糖尿病

下列关于护患关系的理解不正确的是

A．护患关系是一种帮助与被帮助的关系

B．护患关系是一种治疗关系

C．护患关系以护士为中心的关系

D．护患关系是多方面、多层面的专业性互动关系

E．护患关系是在护理活动中形成的

按照气体净制原理的不同，气体的净制方法可以有重力沉降、离心沉降、过滤净制、湿法净制和静电除尘等多种方法。