CATV网络由头端、()、配线网和下引线组成。

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CATV网络由头端、()、配线网和下引线组成。

考点:电子与通信技术接入网技术接入网技术题库
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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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下列关于电流和电压的说法中正确的是(  )

A.大量电荷的移动形成电流

B.自由电子定向移动的方向为电流方向

C.电路两端有电压,电路中可能会有电流

D.通过导体的电流越大,导体两端的电压就越低

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K-B法的抑菌圈直径与最低抑菌浓度(MIC)的关系为抑菌圈越大,MIC越大。

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在Word2000中,可以有3种方法为表格设置底纹,下面的选项( )不能为表格设置底纹。

A.“表格”菜单的“表格属性”命令

B.“绘图”工具栏

C.“格式”菜单的“边框和底纹”命令

D.“表格和边框”工具栏

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有助于判断脑动脉的功能情况以及脑组织的病变情况的实验室检查有()

A.磁共振显像

B.脑电图

C.CT显像

D.X线片

E.脑电阻抗图

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