This paper begins with pointing out four types of misquotations in the First Draft of Xunguxue: redundancy due to misprinting or miscopying,omitting due to misprinting or miscopying,erroneous words,and misrepresent source;and then corrects them.

The Source of the "xian gu huai gen chu,guan qing ma gu gao;

It,however,has been uncertain whether the couplet can be traced to some source.

By analyzing on the similarities and differences of the forms and sources of English and Chinese idioms and making a penetrating analysis on the cultural connotation,we can understand and apply the idioms better,remove cultural misunderstanding and enhance transcultural communication ability.

The Evolvement of Provenance Considered by Scholars in the Period Ranging from the Early Qin Dynasty to the Southern and Northern Dynasty;

It is crucially important for researchers especially scientists to judge the correctness and timeliness of data and experiments according to provenance.

In order to present the optimal error processing model, the characteristic and distribution of the error in GIS data must be studied thoroughly in the first place.