( )是生产中“预防为主”的根本体现,也是安全生产的最高境界。A.本质安全 B.设

题型:单项选择题

问题:

( )是生产中“预防为主”的根本体现,也是安全生产的最高境界。

A.本质安全

B.设备安全

C.安全

D.人身安全

考点:安全工程师安全生产管理知识安全生产管理知识
题型:单项选择题

有些建设项目的业主,由于( ),则不必委托其他单位进行项目管理。

A.充分利用自身优点

B.形成了完善的专业化项目管理机构

C.具有丰富的项目管理经验

D.不利于形成专业管理队伍

E.不需要其他项目管理经验

题型:单项选择题

在成品或半成品成形时,由于花样变化较多,折叠的方法各不相同。( )

题型:单项选择题

Country music is one of the most popular kinds of music in the United States today because it is about simple but strong human feelings and events-love, sadness, good times, and bad times. It tells real-life, stories and sounds the way people really talk. As life becomes more complicated(复杂), it is good to hear music about ordinary people.

Country music, sometimes called country-western, comes from two kinds of music. One is the traditional music of the people in the Appalachian Mountains in the eastern Unite States. The other is traditional cowboy music from the west. The singers usually play guitars, and in the 1920s they started using electric guitars. At first city people said country music was low class. It was popular mostly in the South. But during World War II, thousands of Southerners went to the Northeast and Midwest to work in the factories. They took their music with them. Soldiers from the rest of the country went to army camps(军营)in the South. They learned country music. Slowly it became popular all over the country.

Today country music is also popular everywhere in the United States and Canada—in small towns and in New York City, among black and white, and among educated and uneducated people. About 1, 200 radio stations broadcast country music twenty-four hours a day. English stars sing it in British English, and people in other countries sing it in their own languages. The music that started with cowboys and poor southerners is now popular all over the world.

57. It can be learned from the passage that country music comes from_________-

A. the Northeast and Midwest

B. factories and army camps in the South

C. the Appalachian Mountains and the West

D. real-life stories in small towns

58. Before World War II country music was popular mainly in________.

A. the south           B. the north

C. the Midwest        D. the Northeast

59. During World War II many Southerners went to the Northeast and the Mid-west because____.

A. they wanted to take music with them

B. they wanted to make other people like country music

C. they wanted to work in the factories there

D. they wanted to make country music popular

60. Which of the following is NOT true according to the passage?       

A. Country music is about human feelings and events.

B. Country music is sung by stars all in English.

C. Country music is popular among city people today.

D. City people didn’t like country music at first.

题型:单项选择题

简述饲料能量在动物体内的转化过程。

题型:单项选择题

支气管肺炎与支气管炎的主要鉴别点在于()

A.发热程度

B.咳嗽性质

C.咽部情况

D.肺部啰音性质

E.有无合并胃肠道症状

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