患者女性，27岁，无不适。AFP（-），肝功能检查正常，超声检查时肝左外叶见一54m

配制抗坏血酸注射液：在配制容器中，加配制量80%的注射用水，通二氧化碳饱和，加维生素C溶解后，分次缓缓加入碳酸氢钠，搅拌使完全溶解，加入预先配制好的依地酸二钠溶液和亚硫酸氢钠溶液，调节药液PH6.0~6.2，添加以C0₂饱和的注射用水至足量，滤过，灭菌。

提示：了解处方中各种药物的作用及配制的注意事项。关于下列处方的叙述中，哪些是正确的（）

A.加入NaHC0₃是调节PH值使VitC部份成盐，减少局部刺激，增强稳定性

B.加入NaHC0₃是调节渗透压

C.依地酸二钠为金属络合剂

D.本注射液一般可用115.5℃，30分钟进行灭菌

E.配制中通CO₂是防止维生素C氧化，增加稳定性

思维最基本的智力操作手段是______。

A．比较和分类

B．分析和综合

C．抽象与概括

D．具体化和系统化

我国汛期最长的河流是______；我国含沙量最大，也是世界上含沙量最大的河流是______；我国水量最大的河流是______；我国最长的内流河是______．

肾主纳气的主要生理作用是

A．使肺之呼吸保持一定的深度
B．有助于元气的固摄
C．有助于精液的固摄
D．有助于元气的生成
E．促进肺气的宣发

Due to a constantly (66) environment, a poor understanding of the user’s needs and preferences, as well as a (67) of willingness to modify (68) organizational structures and decision models, the full economic potential of Web Information Systems (WIS) has not been realized by now. The data object types of the (69) meta model, the Extended World Wide Web Design Technique (eW3DT), provide hypertext designers (70) a conceptual, user-centric framework and graphical notation for the construction of both, (71) and customized models, during the software development (72) of commercial WIS. A reference model as a normative concept represents an abstraction of a (73) company, its functional units, or its (Web) Information System and is intended to streamline the design and implementation of complex applications at (74) costs. As precondition for pursuing a partial globalization strategy, eW3DT (75) between technical and content-specific responsibilities for designing, implementing, and maintaining WIS.

A．gives

B．distinguishes

C．has

D．difference