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With everything arranged properly, the project is surely to smoothly as planned, step by step.
A. improve
B. increase
C. progress
D. occur
网友回答
A. improve
B. increase
(答案→)C. progress
D. occur
解析：词义辨析。A.改善，提高 B. 增加 C. 前进，进步 D.发生，出现。句意：由于一切都安排好了，这项工程肯定会按照计划顺利的逐步进行。故选C。