There is medical evidence to show that he is suicidal and clinically depressed.医学证据表明他有自杀倾向而且临床诊断为抑郁.When we are tired, tense, depressed or unwell, we feel pain much more...当我们劳累、紧张、沮丧或生病时，疼痛感更明显。He gets cheerful and dep...
Objective : To study the stress tooth preparation with two kinds of porcelains.〔摘要〕目的: 研究瓷贴面复合体应力分布规律.Objective To study the distribution of the chromatic value of gingival porcelains.目的了解临床常用牙龈瓷的颜色参数.All the porcelains ...
The ant is the most industrious animal; however, it is the most taciturn one.没有任何动物比蚂蚁更勤奋，然而它却最沉默寡言。TWO NEW SPECIES OF THE ANT GENUS Prenolepis FROM YUNNAN CHINA ( Hymenoptera: Formicidae )云南平结蚁属二新种 ( 膜翅目: 蚁科 )None preac...