造成铸件表面粗糙的原因不包括（）。 A.铸件表面粘砂 B.蜡型表面光洁度差 C.浇铸

柜员办理基金认购时应注意（）。

A.做好客户风险评估

B.分清认购与申购

C.确认最低认购额限制

D.如果没有得到系统正确应答，必须在确认上笔交易失败后再重新委托

某市火电厂1998年3月向甲保险公司投保了为期2年的财产保险，保险金额为8个亿。甲保险公司承保后将其中的30%分给了乙保险公司。火电厂投保后，仍担心一旦发生事故，甲公司无力理赔，影响其生产的恢复。于是又于1998年5月向丙保险公司投保了为期2年的财产保险，保险金额也为8个亿。丙公司承保后将其中的20%分给了丁保险公司。火电厂在向丙保险公司投保时已告之以有关先前已投保的情况，在丙公司承保后，火电厂又将投保情况告诉了甲保险公司。1999年4月15日，该火电厂发生重大事故，损失惨重。

火电厂应该向哪些保险公司索赔？为什么？

阅读理解。

     Visitors to museums have to pay "voluntary" admission fees, Boris Johnson, the mayor (市长)

of London, urged yesterday. He said that encouraging visitors to set a value on museums and art

galleries, which have been free since 2001, would work extremely well. Mr. Johnson held up New

York's Metropolitan Museum of Art as a model. Although New York's museums are officially free,

visitors are strongly encouraged to pay a recommended entry fee of $20. At the Met, entry is

impossible without first going to the ticket desk.

     Mr. Johnson's spokesman later admitted that free admission was a "huge draw" for London, but

he said, "Having visited the Met last week, the mayor is impressed by how they maximize voluntary

contributions and believes there are lessons to be learnt." Mark Jones, director of the Victoria and

Albert Museum, told The Times that the museum already requested a ?3 donation but was not as

forceful as New York's institutions. He said, "I'm not in favor of anything that makes people feel they

won't want to go because they feel like they will have to pay."

     When entrance fees to national museums were decided not to be charged here in 2001, there was

a 70 percent increase in visitor numbers in the first year. Political parties have since been unwilling to

suggest change, despite concerns about cost. Hugo Swire, the former Shadow Culture Secretary, was

dismissed(解雇) in 2007 for suggesting that "museums and galleries should have the right to charge if

they wish".

     Some in the art community argue, however, that free entrance has done little to increase the breadth

(广泛) of visitors and has caused shortfalls in the budget(预算) for the museums. In response to it,

Colin Tweedy, chief executive of Arts & Business, said that Britain was "leading the world" in allowing

its treasures to be freely available. He said, "To return to museum charging would be a return to the

dark ages."

     Ben Bradshaw, the Culture Secretary, said, "The mayor showed his true intention when he suggested

those who could afford it should be encouraged to contribute to the arts. I believe it is a disaster for the

culture, arts and sport." He thinks that free museums and galleries have once been one of this

Government's great successes.

1. It can be inferred from the first two paragraphs that ______.

A. museums in London are free by now

B. most museums in London have admission fees

C. Metropolitan Museum of Art is not officially free

D. free entry is impossible to New York's museums

2. We can learn from Mark Jones' words that ______.

A. his museum shows a lack of money  

B. admission fees should be forceful

C. he is in favor of New York's action  

D. he has a consideration for the visitors

3. According to the passage, the cancellation of entrance fees to national museums in 2001 _____.

A. was changed in 2007 by Hugo Swire        

B. has been opposed by political parties

C. has no influence on the number of visitors

D. has caused financial problems to the museums

4.What does the underlined word "it" in the last paragraph refer to?

A. Charging entrance fees to museums.

B. Decrease in the number of visitors.

C. Ensuring visitors' benefits.        

D. Free access to museums.

维生素B12在人体血浆内存在的形式是（）

A.丙基钴胺素

B.乙基钴胺酸

C.乙基钴胺素

D.甲基钴胺素

E.甲基钴胺酸

宫颈感染的病原体主要是（）

A．滴虫

B．加德纳杆菌

C．沙眼衣原体

D．淋球菌

E．HIV