公安工作是我国政府的重要司法行为。 ( )

根据立项批准，某海关现对其海关新办公楼绿化工程施工进行关内公开招标，选定承包人。依据相关规定，资格预审文件采用《标准施工招标资格预审文件》(2007年版)编制。招标人共收到了15份资格预审申请文件，招标人按照以下程序组织了资格审查：
(1)组建资格审查委员会，由审查委员会对资格预审申请文件进行评审和比较。审查委员会由5人组成，其中招标人代表1人，招标代理机构代表1人，政府相关部门组建的专家库中抽取技术、经济专家3人。
(2)对资格预审申请文件进行初步审查。发现有1家申请人与本标段的监理人同为一个法定代表人的，有1家申请人与本标段的监理人相互任职，审查委员会认为这2家申请人不符合相关规定，不能通过初步审查。有1名潜在投标人在资格预审截止时间时，其资格预审文件忘记加盖其单位公章，且没有其法定代表人或者其授权代理人签字，但所有潜在投标人均表示可事后补盖公章的，认为可通过资格审查。
(3)对通过初步审查的资格预审申请文件进行详细审查。审查委员会依照资格预审文件中确定的初步审查事项，发现有1家申请人仍然处于被建设行政主管部门取消投标资格的处罚期内，审查委员会认为这家申请人不符合相关规定，不能通过初步审查。
(4)审查委员会经过上述审查程序，确认了通过以上第(2)、(3)两步的12份资格预审申请文件通过了审查，并向招标人提交了资格预审书面审查报告，确定了通过资格审查的申请人名单。
[问题]

圆C1：x2+y2=4与圆C2：(x-a)2+y2=1有公共点，则a的取值范围为______．

轻轨交通的客运能力能达到( )人几。

A．6000～8000

B．8000～15000

C．10000～30000

D．30000～60000

Friendship is one of the basic bonds (纽带) between human beings. While the characteristics of friendship might vary from one country to another, people from all cultures not only enjoy friends but need them.

　　Many studies have shown that teenagers who have no friends often suffer from psychological disorders. It has been shown that teenagers, perhaps more than any other age group, need companionship and a sense of belonging. The negative consequences of loneliness have also been observed among the elderly. The death of a spouse often leaves a widow or a widower totally bereft (失去). If, however, they are surrounded by friends and relatives and if they are able to articulate（清楚表达） their feelings, they are more likely to recover from their grief.

　　“No man is an island.” In other words, we are all parts of society. We all need the love, admiration, respect and moral support of other people. If we are fortunate, our friends will provide us with all of these necessary aspects of life.

　　As most people observe, there are many levels of friendship. The degree or intensity of friendship varies depending on the personality of the individuals involved and the context of the relationships. Extroverts (性格外向者) enjoy being surrounded by many people whereas introverts（性格内向者）are perhaps content with fewer but more intense friendships.

　　Everyone is not equally open with all their friends. The degree of intimacy (密切) is determined by many factors. Close friends can be formed at any stage in one’s life but they are usually very rare. Not very many people have more than a few really close friends. Irrespective of the level of intimacy, all friendships are based on reciprocity（相互性）, honesty and a certain amount of love and affection.

小题1:The second paragraph implies that _____..

A．teenagers without friends will suffer from psychological problems

B．a widow or a widower will die very soon without companionship

C．human beings need companionship and a sense of belonging

D．both A and B小题2:The degree of intimacy of friendship mainly depends on _____ .

A．age

B．belonging

C．personality

D．culture小题3:The author thinks that close friends _____ .

A．can be easily formed when one is young

B．cannot be long-lasting

C．are not rare for everyone

D．are rare for most people小题4:The word “irrespective”(Last sentence, Para. 5) means _____ .

A．not respecting

B．dishonoring

C．regardless

D．Considering

某投资项目于建设起点一次投入原始投资500万元，获利指数为1.25，则该项目净现值为( )万元。

A．150
B．125
C．240
D．530