多胺（Polyamines,PAs）主要包括腐胺（Putrescine,Put）、亚精胺（Spermidine,Spd）和精胺（Spermine,Spm）。而真菌中的初级多胺——腐胺是由鸟氨......

【Abstract】The key to learning English is to cultivate and improve the students’ listening， speaking， reading， writing sk......

【Abstract】This essay studies the promotion of high school students’ pragmatic competence by watching English films in......

【Abstract】The Woods Were Tossing with Jewels is an excellent article by a well-known American writer Marie St.John whi......

Abstract:In this article, the author analyzes in detail the advantages, disadvantages and forming of the multiple choice......

Don’t miss school events such as talent shows， science fair nights and seasonal potlucks （a meal to which each guest brin......

There isn’t one right way， one perfect question， or one right time to have these conversations. Here are some suggestions......

One beautiful spring morning， a merchant loaded （装载） his donkey with bags of salt to go to the market in order to sell th......

Though it is one of the faded memories of my life today， there are times when I remember its face clearly， especially its ......

A blind boy sat on the steps of a building with a hat by his feet. He held up a sign which said： “I am blind， please help......

1. Introduction　　Nowadays, with the increasing demand fortranslation talents, more and more people choose to take tran......

Oakview students put On Christmas play...

【Abstract】Since China’s economic development has entered a new normal， the economic growth rate has begun to fall shar......

【Abstract】 Recently there is a widespread concern about university students’ hopes and fears for the future especiall......

【Abstract】Two main types of constructivist theories， i.e. social constructivism originated from Vygotsky （1978） and cogni......

Nowadays， environmental problems are so common and are so big that not just for individual country or individual person t......

【Abstract】Since China has taken exchange rate reform in 2005， there are a million times disputes over this issue. It’s......

【Abstract】In 1984， protagonist Winston falls into a trap set by the thoughtpolice and finally be successfully brainwash......

【Abstract】Though abundant work has been done in both meta-cognitive strategy and error analysis， less has been done in ......

It was August 1965 and I was 18， working as a woman clerk at the Bank of England. On Saturday nights， I used to meet a col......

The verb “put” is one of those words you learn first in English. Use it for placing objects. It’s almost impossible t......

目的:探讨DNS-C1柱前衍生条件,增强多胺的荧光性,提高多胺测定的灵敏度.方法:对DNS-C1的浓度、衍生反应温度、反应时间、溶液PH、......

锚杆锚索支护是岩土边坡治理中应用的一种新工艺,该工艺具有施工简单,施工工期短,工程成本低,治理效果明显等优点。本文通过实例介......