2011年高考理综答案(全国卷)（2011 national college entrance examination (national volume)）.docVIP

2011年高考理综答案(全国卷)（2011 national college entrance examination (national volume)） It is difficult to learn the knowledge from: http: //www.Z use and practice, through the practice of access to the experience is very short. So, in the future we are in the workplace, we must seize the opportunity to learn more from the road and bridge engineering workers, and to change the learning methods and attitudes, change the past too dependent on the teachers passive absorption learning, should actively take the initiative to learn and ask , While strengthening self-learning ability and control the ability to solve problems. Third, the professional knowledge in the use of engineering is not flexible enough. Through this graduation practice, I really feel the lack of flexibility in the use of previous professional knowledge. This is mainly on the knowledge did not form a complete system, these scattered knowledge points are very difficult to use, therefore, in the future in the study and practice should pay attention to the accumulation and use, so that the knowledge learned from quantitative to qualitative change, Play a greater role in guiding. Graduation practice soon came to an end, but through this short internship, I learned from the many previously difficult to learn in the textbooks of knowledge, these new gains, we will be on the job is more practical The guiding significance. I would like to introduce the knowledge of the bridge: Bridge to the main force components as the basic basis, can be divided into beam bridge, arch bridge, steel bridge, cable - stayed bridge, suspension bridge five categories. Beam bridge The main beam as the main load-bearing components, the main characteristics of the main beam bending. The main materials for the reinforced concrete, prestressed concrete, used for small and medium span bridge. The minimum span of the simply supported beam bridge is about 20 meters, and the maximum span of the cantilever bridge and the continuous beam bridge is a