In order to distinguish informal language from formal language,this paper centers on the comparisons of register markers between Chinese and English,containing elaborate discussions at the following levels: phonetic level,word level,sentence level and paragraph level.

The distribution of topic sentences in Chinese and English paragraphs;

It analyses the advantages and disadvantages of the three leading units of translation-sentence,paragraph and text as well as the integrative way nowadays.

Benefiting from the theory, English paragraph writing should move from general information to more specific information, put "given" information before "new" information, make a link between sentences as soon as possible and try to include the verb and its subject in the first few words of a sentence.

Objective:To observe the ST-segment resolution,creatine kinase cTnT and LVEF of patients with STEMI after direct PCI and TIMI flow reaching 3 grade in order to investigate the relationship between ST-segment resolution and myocardial damage as well as cardial systolic function.

Unifying the shingling method,to take account of different part of document has different importance,defined 3 probability functions based on paragraph weight,and formed a more p.