数据库系统由数据库、 (35) 和硬件等组成,数据库系统是在 (36) 的基础上发展起来的。数据库系统由于能减少数据冗余,提高数据独立性,并集中检查 (37) ,由此获得广泛的应用。数据库提供给用户的接口是 (38) ,它具有数据定义、数据操作和数据检查功能,可独立使用,也可以嵌入宿主语言使用。 (39) 语言已被国际标准化组织采纳为标准的关系数据语言。 35()
A. 数据库管理系统
B. 文件系统
C. 编译系统
D. 操作系统
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Questions 11 to 18 are based on the conversation you have just heard.
A. He has a serious disease.
B. He’s too poor.
C. He’s getting old.
D. He’s overworked.
The destruction of these treasures was a loss for mankind that____________(是多少金钱都无法弥补的).
Questions 11 to 18 are based on the conversation you have just heard.
A. She wants to spend more time with her family.
B. She thinks the pay is too low to support her family.
C. She doesn’t think she is capable of doing the job.
D. She doesn’t enjoy business trips as much as she used to.
国有股东所持上市公司股份间接转让时,国有股东资产评估的基准日与国有股东产权持有单位对该国有股东产权变动决议的日期相差不得超过1个月。()
A. 对
B. 错