Microsoft Access是一种关系型数据库管理系统(RDBMS)。()
A.正确
B.错误
A.正确
B.错误
以下选项中,哪个产品属于开源数据库系统
A. DB2
B. Sybase
C. Microsoft Access
D. MySQL
选出应填入下面一段英语中______内的正确答案。
Today's response to the data access dilemma eschews the traditional archival approach in favor of emerging standards for what are described as the documents of the future: compound documents. Product users and developers hope the latest standards effort—such as OpenDoc and Microsoft Corp. Object Linking and Embedding (OLE) will(1)data accessibility.
OpenDoc is a standards group(2)a common look and feel throughout documents, even though different applications are used.
OLE technologies allow' Microsoft to(3)its various software products. Microsoft creates, governs and distributes the OLE capability, which is what most(4)it from the open OpenDoc approach. Thus, users can assemble(5)of varying application to create compound documents. With OLE users can, for example, embed an Excel chart in a Microsoft word report.
从供选择的答案中选出应填入下列英文语句中______内的正确答案。
PCs originated as stand-alone(1), however,in recent years many have been(2)to Local Area Networks (LANs). In a LAN, the data and usually the user application reside on the File Server, a PC running a special Network Operating System (NOS) such as Novell's NetWare or Microsoft's LAN Manager. The File Server manages the LAN users' shared access to data on its hard(3)and frequently provides access to other shared resources, such as printers. While a LAN enables users of PC-based databases to share(4)data files, it doesn't significantly change how the DBMS works; all the actual data(5)is still performed on the PC running the database application.
供选择的答案:
(1) calculating (2) common (3) connected (4) disks (5) displayed
(6) systems (7) printers (8) processing (9) some (10) workstations
从供选择的答案中选出应填入下列英文语句中______内的正确答案。
For years, users toiling under the 640 KB(1)memory constraints of MS-DOS have sufFered severe memory(2)problems. Help is available now from DOS extenders. This software technique enables MS-DOS programs to access up to 16 MB of(3)memory on an 80286-based PC and up to 4 GB on an 80386-based PC.(4)3.0 from Microsoft Corp. is the most widely publicized package to use a DOS(5).
供选择的答案:
(1) extender (2) expanded (3) internal (4) argument (5) conventional
(6) management (7) protected (8) X-window (9) Windows (10) security
A.通用对话框是Visual Basic 6.0的内部标准控件
B.要使用CommonDialog控件,必须在“工程”菜单下的“部件”对话框中选定“Microsoft Common Dialog Control 6.0”
C.程序运行过程中,通用对话框在窗体中是可见的
D.打开“部件”对话框只有一种方法
CDMA是英文Code Division Multiple Access的字头缩写,中文意思是() ,是最近才被应用于商业的一种数字接口技术.
A.ADO是一种ActiveX对象
B. ADO采用了OLE DB的数据访问模式
C. ADO是数据访问对象DAO、远程数据对象RDO和开放数据库互连ODBC三种方式的扩展
D. ADO Data控件不能创建与数据库的连接
Which of the following is NOT mentioned as a means for schools to communicate with parents?
A.Social media.
B.Parent meetings.
C.Letters.
D.Email.