心胸绞痛而见四肢厥冷，脉细欲绝，冷汗如油，为______危重之象。

　　冰心作为中国现代文学史上第一位著名女作家，她一步入文坛，便以宣扬“_________”著称，《繁星》、《春水》主要体现三个方面的内容，即：母爱、童真、__________。

阅读下列材料：

材料一：

材料二：“尽道隋亡为此河，至今千里赖通波。”

材料三：“北通涿郡之渔商，南达江都之传输，其利也博哉。”  

请回答：

（1）此河以什么地方为中心？

______________________________________

（2）此河是谁在位时开通的？

______________________________________

（3）材料三中的“涿郡”、“江都”分别指现在的什么地方？

______________________________________

下列关于E-R模型向关系数据模型转换的叙述中，正确的是()。

A．实体的元组就是关系的属性

B．实体的属性就是关系的属性

C．实体的候选码就是关系的码

D．实体的主属性就是关系的码

我国证券交易所采用的交易方式为( )。

A．专家经纪人制

B．经纪制

C．自助方式

D．做市商制

One of the functions of the (71) is to store the applications programs or the various secondaries. The (72) may have similar or dissimilar functions. The same control code received from two different, secondaries may warrant two different actions on the part of the host computer. If the system so requires, the host computer must also provide (73) for the centralized data and the software for database management. Data information is normally stored in auxiliary memories to which the computer has ready access. The (74) peripherals connected to the host computer allow for human entry and intervention. As needs change, application programs may require additions, deletions, or changes. Data link problems also arise which are (75) the range of the computer’s programmed capabilities. In such cases, human entry is required to make the necessary changes to resolve the existing problems.

A．peripherals

B．host computer

C．the interface

D．the client