下列人体不同种类的体液之间，电解质浓度差别最大的一组是[ ] A．血浆与组织液的

简述烟酸缺乏症的临床表现。

根据外商投资企业法律制度的有关规定，产品出口销售额占其产品销售总额一定比例以上的限制类外商投资项目，经批准可以视为允许类外商投资项目，该比例为()。

A．50%

B．70%

C．60%

D．40%

紫金锭的药物组成中含有

A.山慈姑

B.红芽大戟

C.麝香

D.文蛤

E.朱砂

哪项不属于社会心态反映的内容（）

A.社会风气

B.人们的理想追求

C.人们的精神状态

D.人们的行为方式

What of the following is true of Lesley a. He was charged of committing fraud and is under a probe led by some officials. b. Some officials cooperated with the prosecutors to force him to plead guilty. c. He was charged of taking bribes as an official. d. Some officials are involved in the corruption scandal that is being investigated with the help of him.