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问题 单项选择题

DL1000和Quantum的VTL产品DX3000，DX5000，DXi3500和DXi5500相比，在支持磁带驱动器仿真类型上有什么优势（）

A.DL1000支持所有的磁带库和磁带机仿真

B.DL1000可以仿真几十种磁带库和几十种磁带机，兼容性非常广泛，而Quantum支持的仿真类型很少

C.Quantum支持所有的带库，DL1000没有优势

D.Quantum只支持IBM的带库仿真

答案

参考答案：B

填空题

B Customs of Bulgaria: Marriage and Family保加利亚习俗：婚姻与家庭
The average age for women to marry is between 18 and 25.25 tend to (1) when somewhat older. A church wedding often (2) the legal civil ceremony, and a large reception, which often involves (3) music and dancing, is held in the evening. Wedding traditions include (4) money on the bride’s dress to represent future prosperity, the groom (5) the bride at her home, and the couple pulling on opposite (6) of a loaf of bread—whoever gets the largest piece will be (7) boss of the family. Honeymoons are a new tradition.
The principle (8) mutual support is valued in the Bulgarian family. The elderly are (9) cared for by their adult children. Unmarried adults live with their (10) and many newly married couples live with one set of parents (11) they are able to get housing of their own. Most families (12) urban areas live in apartments, which are in short
supply, while (13) in rural areas usually have their own houses. Many village houses (14) owned by families who live in urban areas, who use them_ (15) summer and weekend retreats, or for retired parents.
Most families in (16) areas do not have more than two children, while families in (17) areas tend to be larger. Grandparents play an important role in (18) care, particularly in urban areas, where most women work outside the (19) . Men of the younger generation have begun to help with household (20) , once considered only women’s responsibility.

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单项选择题

下列选项中，与文件读/写相关的命名空间是（）。

A.System

B.System.Input

C.System.Output

D.System.IO
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