为实现转炉与连铸的均衡生产,转炉装料往往实行()操作。

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问题:

为实现转炉与连铸的均衡生产,转炉装料往往实行()操作。

考点:炉外精炼工高级炉外精炼工高级炉外精炼工题库
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Passage One

Historically, although the children of immigrants may have grown up bilingual and bicultural, many did not pass on much of their parents’ language or culture to their own children. Thus, many grandchildren of immigrants do not speak the language of the old country and are "American" by culture. However, in some parts of the country with established communities that share a common language or culture, bilingualism and biculturalism continue. This is particularly true in communities where new immigrants are still arriving. In general, cultural pluralism (多元化) is more accepted in the United States today than it was in the first half of the 20th century, and many of the school systems have developed bilingual programs and multicultural curricula.
At the close of the 20th century, there seemed to be a rise in the consciousness of ethnic groups around the world, and a sense of pride in what makes them unique. This occurs in the United States among many different groups, and in some cases it has resulted in new names to symbolize each group’s identity. In the United States, people have become very sensitive to the language used to describe these groups, and they try to be "politically correct" (P. C. ). For example, many black Americans, particularly young people, prefer the term African-American instead of black, to identify with their African heritage. Some Spanish speakers prefer to be called Latinos (referring to Latin America) instead of Hispanics, while others prefer to be identified by their country of origin (Cuban-American or Cuban, Chicano, Mexican-American or Mexican, and so on).
In spite of some very important differences, however, there is still a tie that binds Americans together. That tie is a sense of national identity—of "being an American". Incidentally, when citizens of the United States refer to themselves as Americans, they have no intention of excluding people from Latin American countries. There is no word such as United Statesians in the English language, so people call themselves Americans. Thus, what is really a language problem has sometimes caused misunderstandings. Although citizens of Latin American countries may call the people in the United States North Americans, to most people in the United States this makes no sense either, because the term North Americans refer to Canadians and Mexicans as well as citizens of the United States. The word American, then, will be used in this text as the adjective and nationality for the people who live in the United States of America.

People who live in the United States of America prefer to be called ______ .

A.United Statesians

B.Americans

C.Latin Americans

D.North Americans

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突触前膜抑制产生的原因是()

A.突触前膜预先去极化

B.突触前膜预先超极化

C.突触前膜预先抑制

D.突触前膜预先发生兴奋

E.突触前膜预先由兴奋变为抑制

题型:填空题

气体灭火启动过程,()正确。

A.是由感烟探测器报警后自动启动

B.有延时,自动关闭防火门、窗,及有关部位防火阀吒

C.有延时,自动打开防火门,便于人员疏散

D.立即自动启动喷射气体,进行灭火

题型:填空题

J.Martin认为企业信息系统成功与否的最重要的因素是()。

A.最高管理者的参与

B.良好的数据库设计

C.开发费用保证

D.数据结构稳定

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上海证券交易所在开放式基金申购、赎回时间,在行情发布系统中的“最新价”栏目揭示当日每百份基金份额净值。( )

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