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期间费用分析就是对费用计划完成情况的分析。
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根据以下资料，回答106～110题。 2007年我国对主要国家和地区货物进出口额及其增长速度 单位：亿元国家和地区货物出口额比上年增长%货物进口额比上年增长%欧盟245229.2111022.4美国232714.469417.2中国香港184418.812818.9日本102111.4134015.8东盟94232.1108421.0韩国56126.1103815.6俄罗斯28579.919712.1印度24064.714642.4中国台湾23513.1101016.2 2007年我国对主要国家和地区货物进出口贸易逆差额(进口额—出口额)最大的国家(地区)是( )。
【问题2】 根据试题的描述信息分析，在最理想的情况下，需要多少天才能完成此网管软件开发任务如果按保守的估计，则需要多少天才可完成此开发任务 (请列出简要的计算过程)
Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.Now listen to the passage. The average number of women in each group is ______.
TEXT A Before the mid-1860’s, the impact of the railroads in the United States was limited, in the sense that the tracks ended at this Missouri River, approximately the center of the country. At the point the trains turned their freight, mail, and passengers over to steamboats, wagons, and stagecoaches. This meant that wagon freighting, stagecoaching, and steamboating did not come to an end when the first train appeared; rather they became supplements or feeders. Each new "end-of-track" became a center for animal-drawn or waterborne transportation. The major effect of the railroad was }o shorten the distance that had to be covered by the older, slower, and more costly means. Wagon freighters continued operating throughout the 1870’s and 1880’s and into the 1890’s. Although over constantly shrinking routes, and coaches and wagons continued to crisscross the West wherever the rails had not yet been laid. The beginning of a major change was foreshadowed in the later 1860’s, when the Union Pacific Railroad at last began to build westward from the Centre Plains city of Omaha to meet the Central Pacific Railroad advancing eastward from California through the formidable barrier of the Sierra Nevada. Although President Abraham Lincoln signed the original Pacific Railroad bill in 1862 and a revised, financially much more generous version in 1864, little construction was completed until 1865 on the Central Pacific and 1866 on the Union Pacific. The primary reason was skepticism that a Railroad built through so challenging and thinly settled a stretch of desert, mountain, and semiarid plain could pay a profit. In the words of an economist, this was a case of "premature enterprise", where not only the cost of construction but also the very high risk deterred private investment. In discussing the Pacific Railroad bill, the chair of the congressional committee bluntly stated that without government subsidy no one would undertake so unpromising a venture; yet it was a national necessity to link East and West together. The author refers to the impact of railroads before the late 1860’s as "limited" because ______.
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