paperback. Condition: New. Language:Chinese.Paperback. Pub Date: 2017-03-01 Pages: 213 Publisher: mechanical industry press The series at the national level of construction qualification exam outline and teaching materials. the scientific. reasonable and close-fitting learning week plan as the main line. to go hand in hand to review the new learning methods for the soul. let the reader grasp the macro examination site in the knowledge framework. in the examination site.