【判断题】均质方法一般采用二段式,第一段均质使用较高压力(16.7~20.6 MPa),目的是分散已破碎的小脂肪球,防止粘连。
【单选题】在我国四川阿坝州的多发一种以四肢关节软骨和骺板软骨营养不良性变性、坏死,继之增生、修复为主要病理改变的疾病。这种疾病进展缓慢,早期即可见到手指末节粗大如鹅头状,并向掌侧弯曲。随着病情进展,关节增粗、变形,肌肉萎缩等改变出现于指间关节、足趾、踝、腕、掌指关节等处;中期可发展至肘、膝关节;晚期累及肩关节、髋关节及脊柱关节。 考虑可能是什么病
【单选题】下列哪种关于地方性氟中毒流行特征的论述是错误的
【简答题】In many parts of the world, cars play an important role in daily life and many societies would not exist without them. 1 But this is the prediction made by a team of transport researchers who are take...
【单选题】In many parts of the world cars play an essential role in daily life and many societies would cease to function without them. So, tile claim that in 20 years' time, no one will own cars may be hard to...
A.
don't believe the prediction that nobody will own cars by 2020
B.
are devoted to the technological innovation in car industry
C.
consider the predictions made by the researchers seriously
D.
have put the super-intelligent car into mass production
【单选题】关于疾病的地方性的说法,下列说法不正确的是( )
E.
迁出该地区的居民,该病的发病率下降,患者症状减轻或呈自愈趋向。
【单选题】下面关于地方性氟中毒人群分布描述正确的是()
【判断题】均质方法一般采用二段式,第一段均质使用较高压力(16.7~20.6 MPa),目的是分散已破碎的小脂肪球,防止粘连。