The word "intermittently" in live 4 is closest in meaning to（）
A. periodically
B. incorrectly
C. rapidly
D. roughly
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According to the passage, why did the first people who came to North America leave their homeland（）
A. They were hoping to find a better climate
B. They were seeking freedom
C. They were following instructions given in a dream
D. They were looking for food
应避免因工程地质勘查不详而引起工程造价增加的情况是（）。
A. 地质对结构选型的影响
B. 地质对基础选型的影响
C. 设计阶段发现特殊不良地质条件
D. 施工阶段发现特殊不良地质条件
计算单位工程共程量时，强调按照既定的顺序进行。其目的是（）。
A. 便于制定材料采购计划
B. 便于有序安排施工进度
C. 避免因人而异，口径不同
D. 防止计算错误
All of the following are mentioned in paragraph l as results of the trend toward installing contemporary art in public places in the United States EXCEPT（）
A. the transfer of artwork from private to public sites
B. artworks that represent a city's special character
C. greater interest in art by the American public
D. a broader understanding of the varieties of contemporary art
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