What is the basic concept of GMDSS? （）

A . The optimizer statistics are collected automatically. B . Only the timed operating system （OS） statistics and plan execution statistics are collected. C . The Oracle server dynamically generates the necessary statistics on tables as part of query optimization. D . The snapshots for the Automatic Workload Repository （AWR） are not generated automatically.  E . Snapshots cannot be collected manually by using DBMS_WORKLOAD_REPOSITORY PACKAGE.

A . 2 B . 3 C . 4 D . 5

A . 正确 B . 错误

A . promoting the professional teachers’ development B . letting the students choose the course independently C . advocating the constructivist learnin D . for every student’s development

A . Configure the net system - id command under routerisis and enable IS - IS on each interface with the ip router isis command. B . Configure the net sy stem - id and the network net - id commands under routerisis. C . Configure the network net - id command(s) under routerisis and enable IS - IS on each interface with the ip router isis command. D . Configure the network net - id command(s) and the is - type level -1- 2 command under routerisis. E . Configure the net system - id and the network net - id commands under routerisis and enable ISIS on each interface with the ip router isis command.

A . Each OSPF area requires a loopback interface to be configured. B . Areas may be assigned any number from 0 to 65535. C . Area 0 is called the backbone area. D . Hierarchical OSPF networks do not require multiple areas. E . Multiple OSPF areas must connect to area 0. F . Single area OSPF networks must be configured in area 1.

A . only SAR authorities on land B . all ships in a very large sea area C . the nearest coast stations and port radios D . the SAR authorities ashore as well as ships in the vicinity of the casualty

A . The optimizer statistics are collected automatically. B . Only the timed operating system （OS） statistics and plan execution statistics are collected. C . The Oracle server dynamically generates the necessary statistics on tables as part of query optimization. D . The snapshots for the Automatic Workload Repository （AWR） are not generated automatically.  E . Snapshots cannot be collected manually by using DBMS_WORKLOAD_REPOSITORY PACKAGE.

A . Magnetic materials of the same polarity repel each other and those of opposite polarity attract B . The Earth's magnetic lines of force are parallel to the surface of the Earth C . Magnetic meridians connect points of equal magnetic variation D . The compass needle(s) will，when properly compensated，lie parallel to the isogonic lines of the Earth

A . Optimizer statistics are collected automatically. B . Only timed operating system （OS） statistics and plan execution statistics are collected. C . The snapshots for the Automatic Workload Repository （AWR） are not generated automatically. D . Snapshots cannot be collected manually by using the DBMS_WORKLOAD_REPOSITORY package. E . The Oracle server dynamically generates the necessary statistics on tables as part of query optimization.

A . Optimizer statistics are collected automatically. B . Only timed operating system （OS） statistics and plan execution statistics are collected. C . The snapshots for the Automatic Workload Repository （AWR） are not generated automatically. D . Snapshots cannot be collected manually by using the DBMS_WORKLOAD_REPOSITORY package. E . The Oracle server dynamically generates the necessary statistics on tables as part of query optimization.

A．Critical B．Negative C．Positive D．Objective

A、精神风貌Proper appearance B、语言规范Standard language C、技术水平Technical skill D、行为举止Good manner 此题为多项选择题。