设(X1，X2…，Xn)(n≥2)为标准正态总体X的简单随机样本，则( )

某生产流水线设备安装工程，业主采取以工程量清单报价的方式，经招标确定了中标单位，以单价合同方式签订了施工承包合同。对于工程变更、工程计量、合同价款的调整及工程款的支付等都做出了规定。【问题】 1．考虑到本工程的复杂情况，业主对工程变更的条款作了重点考虑，那么 ①属于工程变更的事项包括哪些方面内容 ②对于工程变更的管理方面，如果是业主提出的变更应如何进行如果是施工单位提出的工程变更应如何进行管理 2．在施工过程中，若承包商根据业主的指令对部分工程进行变更施工，试问：变更部分合同价款应根据什么原则进行确定变更价款的确定应按什么样的程序进行 3．若由于业主提出的工程变更而引发施工单位的费用索赔和延长工期的要求，但业主与施工单位对该项索赔未取得一致意见，从而形成合同争议，试问应当通过什么方式处理和解决争端

减轻会谈对象焦虑的措施是（）

A.在会谈开始时告诉对方会尽一切努力对会谈资料保密

B.向初次接受会谈的人说明会谈的方法和方式

C.以宽容和接纳的态度去倾听对方的谈话

D.尊重对方的意见

E.以上都是

阅读理解。

     In only two decades Asian Americans have become the fastest- growing US minority. As their children

began moving up through the nation's schools, it became clear that a new kind of culture was coming out.

Their achievements are made in the nation's best universities, where mathematics, science and engineering

departments have taken on a decidedly Asian character. This special liking for mathematics and science is

partly explained by the fact that Asian-American students who began their education abroad arrived in the

US with a solid grounding in mathematics but little or no knowledge of English. They are also influenced by

the promise of a good job after college. Asians feel there will be less unfair treatment in areas like mathematics

and science because they will be judged more objectively (客观). And the money spent on education is more

immediately returned in something like engineering than with an arts degree.

     Most Asian-American students owe their success to the influence of parents who are determined that their

children should take full advantage of what the American educational system has to offer. An effective measure

of parental attention is homework. Asian parents spend more time with their children than American parents

do, and it helps. Many researchers also believe there is something in Asian culture, such as family value, the

importance of education and so on that lead to their success.

     Both explanations for academic success worry Asian Americans because of fears that they could cause

the native Americans' unhappiness. Many can remember when Chinese, Japanese and Filipino immigrants (移

民) were unequally treated because of social separation. Indeed, it was not until 1952 that laws were laid down

giving all Asian immigrants the right to citizenship.

1. Few Asian-American students major in human sciences mainly because _____.

A. they are afraid they might meet with unfair judgment in these areas

B. there is a wide difference between Asian and Western cultures

C. they know little about American cultures and Western cultures

D. their English is not good enough

2. Asian-Americans prefer something like engineering to an arts degree because _____.

A. people majoring in engineering are respected

B. people with an arts degree are looked down upon

C. they can't find a job with an arts degree

D. they can earn more money after graduation

3. While making great achievements at college, Asian-American students _____.

A. are afraid that their.academic successes take on a strong Asian character

B. still worry about unfair treatment in society

C. generally feel it a shame to have to depend on their parents

D. feel they are mistreated because of limited knowledge of English

4. According to the passage, the major factors determining the success of Asian-Americans are _____.

A. Asian culture and the American educational system

B. Asian culture and a solid base in basic mathematics

C. hard work and parental help

D. hard work and a limited knowledge of English

风热病邪有何致病特点？

直肠前突综合征治疗强调三多（多粗粮、多饮水、多活动）。