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【单选题】
43～47 某机电公司承建某化工厂的室外架空蒸汽热力管网工程施工任务。该管网还设置有压力表、温度计等就地仪表和安全阀等。在制定施工组织设计或施工方案时，应明确包括下列安装方法和要求。 第 43 题 该蒸汽热力管网的施工程序是：施工准备→测量放线→管道支架→制作安装→管道分段组焊→吊装就位→管道段组对焊接→管道系统检查→（ ）→资料汇总、绘制竣工图→竣工验收。A.
防腐绝热→系统试压→系统清扫
B.
系统清扫→防腐绝热→系统试压
C.
系统清扫→系统试压→防腐绝热
D.
系统试压→防腐绝热→系统清扫
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举一反三
【单选题】About American music, which of the following statement is not true?
A.
It reflects the country’s multi-ethnic population through a diverse array of styles.
B.
Rock and roll, blues, country, rhythm and jazz, pop, and hip-hop are among the country's most internationally-renowned genres.
C.
The United States has the world's second largest music industry.
D.
One of the common themes of country music is about life in rural America.
【简答题】压缩机的()是驱动机传给压缩机主轴的功率。
【单选题】Of the following four types of music, ______ is considered the native American music.
A.
rock and roll
B.
jazz
C.
classical music
D.
western and country music
【单选题】American rock music of the 1960s was greatly influenced by
A.
American country music.
B.
British rock music.
C.
Hollywood film music.
D.
the Hippies.
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