hardship

The Difficulty at the Start of Modern China s Diplomacy——Taking the Premier s Office as an Example;

中国近代外交起步的艰难——以总理衙门为例

Because of the Chinese traditional ethics culture that has a deep effect on the Chinese consciousness,brain death legislation is prompting with difficulty.

因中国传统伦理文化对人们意识观念的深刻影响导致中国脑死亡立法步履艰难。

Expression of clostridium difficile toxin B C-terminal repeated unit in E.coli and its immunogenicity;

艰难梭菌细胞毒素B功能区的原核表达及免疫原性

Cloning and sequencing of the C-terminal domain gene of Clostridium difficile toxin B;

艰难梭菌细胞毒素B功能区的克隆及序列分析

Gene cloning and high expression of clostridium difficile toxin A C-terminal repeated unit;

艰难梭菌毒素A羧基端基因的克隆与表达

Tragedy of Utilitarianism Rereading Dickens Hard Times;

功利主义的悲剧——重读狄更斯的《艰难时世》