【正确答案】In the past 30 years, resorting to Chinese’ s indomitable initiative and the magnificent innovation practice, China has unswervingly advanced the reform and opening-up and socialist modernization. China has undergone historical changes, which are revealed in the great progress in China’ s economic power, aggregate national strength and people’ s living standard. It has also successfully transferred from a highly-centralized planned economy to a vigorous socialist market economy system, from a closed and semi-closed economy to an all-around open one. This signifies a great historical transition. Owing to the fast development, Chinese people’ s living standard has grown from the under-subsistent level to the overall well-off level. And China’ s achievements in political, cultural, social construction have won worldwide attention. Through the great practice of reform and opening-up, we deeply realize that if a country or a nation wants to develop itself in such a competitive world at present, it has to keep up with times, reform and open to the outside world, stress on development, place people at the first place and promote social harmony. 

【答案解析】无