下列哪些电源可以用于起爆电雷管(). A.起爆器 B.蓄电池 C.干电池 D.照明电

题型:多项选择题

问题:

下列哪些电源可以用于起爆电雷管().

A.起爆器

B.蓄电池

C.干电池

D.照明电源

考点:爆破工程师考试爆破安全技术爆破安全技术题库
题型:多项选择题

A、B、C三只小烧杯内一次盛有一定体积的浓氨水、酚酞溶液、酚酞溶液,按图所示进行探究活动不能得到结论是(  )(  )

A.氨分子是不断运动的

B.氨分子之间有间隔

C.空气不能使酚酞溶液变红

D.氨分子溶于水,形成的氨水使酚酞溶液变红

题型:多项选择题

As more and more people speak the global languages of English, Chinese, Spanish, and Arabic, other languages are rapidly disappearing. In fact, half of the 6,000-7,000 languages spoken around the world today will likely die out by the next century, according to the United Nations Educational, Scientific, and Cultural Organization (UNESCO).

In an effort to prevent language loss, scholars from a number of organizations- UNESCO and National Geographic among them –have for many years been documenting dying languages and the cultures they reflect.

Mark Turin, a scientist at the Macmillan Center, Yale University, who specializes in the languages and oral traditions of the Himalayas, is following in that tradition. His recently published book, A Grammar of Thangmi with an Ethnolinguistic Introduction to the Speakers and Their Culture, grows out of his experience living, looking and raising a family in a village in Nepal.

Documenting the Tangmi language and culture is just a starting point for Turin, who seeks to include other languages and oral traditions across the Himalayans reaches of India, Nepal, Bhutan, and China. But he is not content to simply record these voices before they disappear without record.

At the University of Cambridge Turin discovered a wealth of important materials- including photographs, films, tap recordings, and field notes- which had remained unstudied and were badly in need of care and protection.

Now, through the two organizations that he has founded-the Digital Himalaya Project and the World Oral Literature Project- Turin has started a campaign to make such documents, found in libraries and stores around the world, available not just to scholars but to the youngers.

Generations of communities from whom the materials were originally collected.Thanks to digital technology and the widely available Internet. Turin notes,the endangered languages can be saved and reconnected with speech communities.

小题1:Many scholars are making efforts to _____.

A.promote global languages

B.rescue the disappearing languages

C.search for language communities

D.set up languages research organizations.小题2:What does “that tradition” in Paragraph 3 refer to?

A.Having first records of the languages

B.Writing books on language searching

C.Telling stories about language users

D.Linking with the native speakers小题3:What is Turin’s book based on?

A.The cultural statics in India.

B.The documents available at Yale.

C.His language research in Britain.

D.His personal experience in Nepal.小题4:Which of the following best describe Turin’s  Work?

A.Write sell and donate.

B.Record,repeat and reward.

C.Collect,protect and reconnect.

D.Design, experiment and report.

题型:多项选择题

一列行军队伍长120m,通讯员从队尾赶到排头再返回队尾,这时队伍前进了288m,如果队伍和通讯员都是做匀速直线运动,求通讯员在这段时间内共走了多远?

题型:多项选择题

下列属于投资服务和融资服务的技术建议书的内容的是( )。

A.市场参考信息

B.对业主(招商人)要求提供的资料、服务和设施的解释和建议

C.实施投资服务或融资咨询服务的具体的技术方案和咨询工作整体工作计划

D.专业人员的简历与服务团队的组织和任务分配

E.服务项目时间安排和工作进度计划

题型:多项选择题

随着露天开采深度的增加,露天开采引起的环境地质问题主要是()。

A.采空区塌陷

B.地热危害

C.崩塌

D.滑坡

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