The word "Ultimately" in line 14 is closest in meaning to（）
A. frequently
B. normally
C. whenever possible
D. in the end
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施工组织总设计的主要内容中点定为关键的是（）。
A. 施工部置和施工方案
B. 施工总进度计划
C. 施工准备及资源需要量计划
D. 主要技术组织措施和主要技术经济指标
The word "enhancement" in line 20 is closest in meaning to（）
A. replacement
B. design
C. improvement
D. decoration
What can be inferred from the passage about the difference between written and oral literature（）
A. Written literature reflects social values better than oral literature does
B. Written literature involves less interaction between audience and creator during the creative progress than oral literature does
C. Written literature usually is not based on historical events, whereas oral literature is
D. Written literature is not as highly respected as oral literature is
根据《砌筑砂浆配合比设计规程》JGJ98，用强度等级为42.5的水泥制备M15水泥砂浆，每立方米水泥砂浆的水泥用量至少是（）。
A. 280kg
B. 350kg
C. 230kg
D. 400kg
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