下列关于货物招标与工程招标工作分解的叙述中，正确的有（）。
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A) invariably B) literally C) barely D) solely
涉及房屋建筑和市政基础设施工程施工招标的项目，评标委员会应推荐不超过（）名有排序的合格中标候选人。
Professor smith and Professor Brown will ________ in giving the class lectures.
A. alter
B. change
C. alternate
D. differ
Which of the following can best sum up the passage？
Advantages and disadvantages of automation.
B. Labour and the effects of automation.
C. Unemployment benefit plans and automation.
D. Social benefits of automation.
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