Patchy Analysis on Distribution Patterns of Petrophytia of Evergreen Broadleaved Forest at Longwangshan;

Based on the database,the current landscape pattern characteristics were analyzed,which include patch size,patch shape and landscape pattern as a whole.

A mathematical model of a single species dispersal in a n patch enviroment is established and its global asymptotic stability is discussed by using the theory of monotone operator and concave operator.

The characteristics of Latin prefixes in English;

This essay tries to express the extended meanings of negative prefixes,such as "negative,opposite,and reverse" etc.

On affixation of English words, it is generally acknowledged that suffixes frequently alter the word class of the base, and that prefixes generally don t.

This paper focuses on the prefixes of numeral and classifier.

This paper expounds the importance of affixes, analyzes the deficiency of the College English Syllabus (revision)and College English Intensive Reading (revision) Book I to Book 4 in dealing with the prefixes and suffixes in common use, and puts forward some advice and suggestions on how to make a creative use of the syllabus and textbooks.