城市化：扩大内需的持久动力

我国城市化进程明显滞后，成为内需不足的一个重要原因，因此，加快城高化进程将为扩大内需提供持续强劲的动力，其对策是破除行政、经济壁垒、制定吸引农民进城的政策，推动农业剩余劳动力向城市的转移，并制定合理可行的城市发展战略。     

军事工程院校金工实习的教学与改革

根据军事院校的特点,通过参观见习扩展实习内容,开展SRT创意实践改革金工实习,提高实习水平,并取得了一定的成效.     

Membranes are more mosaic than fluid

The wealth of new data on membrane protein structures and functions is changing our general view of membrane architecture. Some of the key themes that are emerging are that membranes are patchy, with segregated regions of structure and function, that lipid regions vary in thickness and composition, and that crowding and ectodomains limit exposure of lipid to the adjacent aqueous regions.