（2008）已知某理想气体的摩尔数为ν，气体分子的自由度为i，k为玻耳兹曼常量，R为

关于Rh血型系统的叙述，错误的是（）

A.在人类与ABO血型同时存在

B.抗原存在于红细胞表面

C.我国大多数人为Rh阴性血型

D.人的血清中不存在天然的Rh抗体

E.Rh阴性者第一次接受Rh阳性血液不会出现凝集反应

     "A very disruptive(扰乱型的) six-year old child kicked my legs and clawed at my hand," said one

teacher.  "I  broke up a fight and was kicked between my legs," said another. Many people have heard

stories like this.  But the situation is more worrying still and it involves parents.

     Every child, regardless of the circumstances into which they are born, has the right to achieve their

potential, regardless of their parents’ wealth and class. And we recognize that, as a nation，it is a long

way to achieve this goal. But rights come with responsibilities and what worries people is that we are in

danger of neglecting the latter.

     Far too many children are behaving badly at school, even to the point of being violent to staff. This is

terrible enough, but it is hard to be surprised since many children are just mirroring the behavior of their

parents. Too many are starting school unable to hold a knife and fork, unused to eating at a table, and

unable to use the lavatory properly.

     We are in danger of becoming a nation of families living separate lives under one roof. The bedroom,

once a place to sleep, has become the living space for the young. Spending hours in front of computer

screens, on social networking sites or being immersed in computer games, children and young people

spend little time with their parents. Parents are unable to monitor just what their children are watching. 

     Schools cannot right the wrongs of society and teachers cannot become substitute parents. Both parties need to work together. Parents must be helped and given confidence to take back control. They are responsible for setting boundaries for their children's behavior and sticking to those boundaries when the going gets tough. They are responsible for setting a good example to their children and for devoting that most precious of resources—time—so that children come to school ready and willing to learn.

1. In the opinion of the writer, what problem do people ignore?

A. The school violence.    

B. The pressure of students' learning

C. The right to achieve students potential.  

D. the responsibilities of the students.

2. The writer's attitude to the behaviors of parents may be that of ________.

A. dissatisfied          

B. unconcern    

C. understanding    

D. tolerance

3. The underlined part in Para 4 may means__________.

A. parents and children live in their separate rooms

B. parents care little about children's life at home

C. children don't live with their parents in the same room

D. at home children live a different life from that of parents

4. From the last paragraph, we can infer that______.

A. schools can't correct the wrongs that society does to teachers

B. teachers have no responsibility for playing the role of parents

C. parents should spend time with children making them ready to learn

D. students are responsible for making themselves known in society

英国养老保险的覆盖范围主要是薪金劳动者和独立劳动者。

关于增值税纳税义务发生的时间，下列说法正确的有( )。

A．采取预收货款方式销售货物时，为收取预收货款的当天

B．采取分期付款方式销售货物时，为收到货款的当天

C．采取托收承付和委托银行收款方式销售货物的，为发出货物并办妥托收手续的当天

D．采取代销方式销售货物的，为收到代销清单的当天

E．采取赊销方式销售货物时，为发出货物的当天

阀门的最大工作压力与公称压力相等。