Cosynthesis results of blocked mutants elucidated the relationship of the blocked sites of the mutants and the relative position of above compounds in the biosynthetic pathway of apramycin.

On the Historical Lessons of the Break of the First Kuomintang-Communist Cooperation;

The reasons for these paradoxes include the deviation of value orientation in the governments merit evaluation,lack of rules in the aspect of interests between local governments,and the single subjects of public cooperation.