发电机在电力系统发生不对称短路时，在转子中就会感应出（）电流。A、50Hz B、100

综合填空。根据首字母提示，完成短文。

      Almost everyone likes dogs, and almost everyone likes to read s  1    about dogs. 

      I have a friend. He has a large police dog n  2   Jack. Police dogs are very clever. Every Sunday afternoon

my friend takes Jack for a long w  3   in the park. Jack likes these long walks very much. 

      One S  4   afternoon a young man came to visit my friend. He stayed a long time. He talked and talked. Soon

it was t  5   for my friend to take Jack for his walk. But the visitor still stayed. Jack became very w  6  . He

walked around the room several times and then sat d  7   in front of the visitor and looked at him. But the visitor

paid no attention. He went on t  8  .  

      Finally Jack got a  9  . He went out of the room and came back a few minutes later. He sat down again in

front of the visitor, but this time he took the visitor's cap in his m  10  .

1.________    2. ________    3. ________    4. ________    5.________

6.________    7. ________    8. ________    9. ________   10.________

功能祛风湿，通经络，消骨鲠的药物是（）。

A.独活

B.威灵仙

C.川乌

D.蕲蛇

E.木瓜

在选择系统开发方法时，不适合使用原型法的情况是（　　　）

A．用户需求模糊不清

B．管理体制不够稳定

C．使用范围变化较大

D．缺乏开发支撑工具

绞窄性小肠梗阻常见原因（）

A.扭转

B.内疝

C.套叠

D.粘连

E.以上都是

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．process

B．procedure

C．model

D．project