导线通过交流电时,导线之间及导线对地之间产生交变电场。因而有()。A、电抗; B、感

题型:单项选择题

问题:

导线通过交流电时,导线之间及导线对地之间产生交变电场。因而有()。

A、电抗;

B、感抗;

C、容抗;

D、阻抗。

考点:变电检修工考试变电检修初级工变电检修初级工题库
题型:单项选择题

在实际建筑工程中,一股优先选用的电缆为( )。

A.聚氯乙烯绝缘电缆
B.聚乙烯绝缘电缆
C.交联聚乙烯绝缘电缆
D.不滴油纸绝缘电缆

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《统计上大中小微型企业划分办法》的适用范围不包括住宿和餐饮业。()

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美国西北航空公司董事长H..凯莱赫力图在公司员工中营造家属感情,他记住了员工的姓名,亲自送生日贺卡给员工。为了设法保持本公司在放宽了管制的航空业中的地位,他还经常接受工会和员工们的合理要求与建议,他的这种作风赢得了员工对他的尊敬。此外他还将自己的办公室设在了兵营式的大楼内,作为领导者和下属的榜样,使全体员工团结一心,为了公司的发展主动献计献策,公司的业务蒸蒸日上,在同行业中一直处于领先的地位。请用领导的行为与领导的作风的管理理论分析该领导属于哪种领导作风,并说明这种领导作风的主要观点和方法。

题型:单项选择题

(12分)下图为我国南水北调示意图。读图完成下列各题。

(1)南水北调东、中线工程调水的主要调入区是       (华北、西北)。东线工程主要利用

          作为输水渠道,以节省投资。(4分)

(2)“南水北调”中的“南”、“北”分别是指我国南方、北方地区。我国南方、北方的地理分界线大致是           。(2分)

(3)湖南省某中学小明、小强同学利用寒假沿东线考察,发现从扬州到天津沿途植被景观的变化明显,这种变化反映的是       (纬度、经度)地带性地域分异的基本规律。(2分)

(4)小明、小强两同学考察后,以“南水北调东线工程对调入区生态环境的影响”为课题,开展探究活动,并形成了两种不同看法。

①小明认为:利大于弊;

②小强认为:弊大于利。你赞成哪位同学的看法,并简要说明理由。(4分)

题型:单项选择题

In considering how the American family is changing, the starting point is the traditional family. a form which has developed over time on the basis of a number of assumptions. It is assumed that the family is heterosexual (异性的) institution, with prescriptions about how a man and a woman ought to be joined together and live together. The proper family form is assumed to be the nuclear family, that is, a family composed of a married man and woman and their children. It is assumed that the husband is the head of the family, with ultimate authority over wife and children, and that in their clearly separated roles the husband is the income-earner and the wife is the homemaker and provider of child care. It is assumed that the family lives by itself in its own house or residence.

Observers of family life have suggested that numerous changes are taking place in this traditional American family form. Included are the following general observations about trends:

More men and women seem to be living together before getting married.

Women and men seem to be marrying at a later age.

Married couples are having fewer children.

Unmarried women appear to be having more children.

Wives, even mothers with small children, are increasingly likely to be employed outside the home.

Marriages are more likely to end with divorce.

Single-parent families are more prevalent.

Remarriage is likely to follow divorce rather than widowhood.

Remarriage rates are declining, especially for women.

Some trends, viewed in a long-range historical context, appear not to be trends at all. The age at which men and women normally marry is the same now as it was 100 years ago, though it has fluctuated (变动,波动); a short-range increase in the 1940s and 1950s due to widespread postponement of marriage in war time made it appear that a change had occurred. Other trends appear to be following established patterns rather than representing a sharp break with tradition. Divorce rates have been increasing and families have been having fewer children for well over a century. Single-parent families and stepfamilies were very common in the past, although the reason for them was different. Many marriages formerly are dissolved and followed by remarriage because of the death of a parent or partner. Today single parenthood and remarriage are more likely to be a response to divorce.

Some social scientists see in these changes the breakdown of the family, to the detriment of the society. We take the position that family institutions and systems, like all human systems, are open, take many forms, and are constantly changing.

Which of the following is NOT an assumption about traditional family().

A. A family made up of husband, wife and their children is the proper family form.

B. The husband in a family pursues a career outside while the wife takes care of the home.

C. Boys in a family enjoy privileges over girls.

D. The family lives by itself in its own residence.

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