国家对什么样产品实行淘汰制度？

根据《招标投标法实施条例》，潜在投标人对招标文件有异议的，应当在投标截止时间（）日前提出

A．2 

B．3 

C．5 

D．10

阅读理解。

     The Notting Hill Camival (诺丁山狂欢节) has been taking

place in London, on the last weekend in August, every year since

1964.

       This great festival began with the Black immigrants(黑人移

民) from the Caribbean, particularly from Trinidad, where the

Camival tradition is very strong. People there dreamed of creating

a festival to fight against racism (种族主义).  At that time, they

didn't have working opportunities and their housing conditions were

poor.

      This holiday always falls on the last weekend of August with

Sunday and Monday being the major camival days. There are

scores of massive" sound systems" ,  many beautiful and big floats

 (游行彩车)  and steel drum bands (钢鼓乐队).  There are

hundreds of stalls (货摊)  along the streets of the area selling all

sorts of food and drink including Caribbean specialties (特产).

     Dressed in different colors, hundreds of children get the

parade under way on Sunday, ahead of more than 100 floats and

thousands of performers who will stage the main parade on

Monday. Party-goers will eat, drink and dance their way through

the streets.

    The camival, which takes place in the streets of the west

London district, was made famous by the movie Notting Hill

starring Julia Roberts and Hugh Crant. It has become one of the

most celebrated symbols of multicultural Britain.

1.  According to the passage,  the Notting Hill Camival usually lasts _____.  

A. a week                                

B. two days

C. a month                            

D. a year

2. The Camival tradition originated from _____.     

A.  London                              

B.  the Caribbean

C.  America                            

D.  Afric

3. You can watch the Camival performance in _____.

A. the street                              

B. the cinema

C. the hall                        

D. the bar

4. From the passage, we can learn that the Notting Hill Carnival   _____. 

A. takes place every other year

B. has a history of over half a century

C. features dance, drum bands, fine food and beautiful colors

D. was started by Julia Roberts and Hugh Grant

村镇道路是村镇规划范围内路面宽度在（）m以上道路的总称。

A.12

B.7

C.5

D.3.5

患者，女性，40岁。右侧腮腺区有反复肿胀感3年，自觉进食时肿胀感加重。最合适的诊断是

A．慢性阻塞性腮腺炎

B．第一腮裂囊肿

C．化脓性腮腺炎

D．舍格伦综合征

E．流行性腮腺炎

依据我国反不正当竞争法，监督检查部门工作人员监督检查不正当竞争行为时，应当出示的证明材料是（）。

A.检查证件

B.身份证

C.被侵权者的授权书

D.侵权实际发生的证明材料