对owner、group、other解释正确的选项是：（）

A:owner：超级用户group：群组用户other：其他用户。 B:owner：文件的属主（拥有者）group：用户组内成员other：其他用户。 C:owner：文件的属主（拥有者）group：群组用户other：其他用户。 D:owner：超级用户group：用户组内成员other：其他用户（非owner和非group）。

请指出：以下选项中的哪些字段是HSRP协议报文的受部字段？（）

A:State B:Action C:Hellotime D:Priority E:Group

以下关于VRRP中Priority的说法正确的是：（）

A:不管配置的Priority是多少，虚拟IP地址的拥有者始终使用255做为Priority B:不管配置的Priority是多少，虚拟IP地址的拥有者始终使用0做为Priority C:可以通过给某台VRRP路由器配置Prority为0的方式使该VRRP路由器不参与Master选举，使该路由器始终为Slave D:当VRRP的Master路由器停止运行VRRP的时候，会向网络中发送一个Priority为0的VRRP通告消息

APG40C/4中用命令cluster group可以看到的资源组有（）

A:Disk Group B:Cluster Group C:RGAPM_0 D:PMC860 GROUP

听第9段材料，回答第13至15题。
（听力内容暂无）

A:The debating group. B:The handball group. C:The music group.

Scientists have long warned that some level of global warming is a done deal—due in large part to heat-trapping greenhouse gases humans already have pumped skyward. Now, however, researchers are fleshing out how much future warming and sea-level rise the world has triggered. The implicit message: "We can’t stop this, so how do we live with it" says Thomas Wigley, a climate researcher at NCAR.
One group, led by Gerald Meehl at NCAR, used two state-of-the-art climate models to explore what could happen if the world had held atmospheric concentrations of greenhouse gases steady since 2000. The results: Even if the world had slammed on the brakes five years ago, global average temperatures would rise by about 1 degree Fahrenheit by the end of the 21st century. Sea levels would rise by another 4 inches over 20th-century increases. Rising sea-levels would continue well beyond 2100, even without adding water from melting glaciers and ice sheets. The rise highlights the oceans’ enormous capacity to absorb heat and its slow reaction to changes in atmospheric conditions.
The team ran each model several times with a range of "what if" concentrations, as well as observed concentrations, for comparison. Temperatures eventually level out, Dr. Meehl says in reviewing his team’s results. "But sea-level increases keep ongoing. The relentless nature of sea-level rise is pretty daunting." Dr. Wigley took a slightly different approach with a simpler model. He ran simulations that capped concentrations, at 2000 levels. If concentrations are held constant, warming could exceed 1.8 degrees F. by 2400. The two researchers add that far from holding steady, concentrations of greenhouse gases continue to rise. Thus, at best, the results point to the least change people can expect, they say.
The idea that some level of global climate change from human activities is inevitable is not new. But the word has been slow to make its way into the broader debate. "Many people don’t realize we are committed right now to a significant amount of global warming and sea-level rise. The longer we wait, the more climate change we are committed to in the future," Meehl says.
While the concept of climate-change commitment isn’t new, these fresh results "tell us what’s possible and what’s realistic" and that for the immediate future, "prevention is not on the table," says Roger Pielke Jr., director of the Center for Science and Technology Policy Research. To Pielke and others, this means adaptation should be given a much higher priority that it’s received to date. "There’s a cultural bias in favor of prevention," he says. But any sound policy includes preparation as well, he adds. "We have the scientific and technological knowledge we need to improve adaptation and apply that knowledge globally./
The author writes this passage to

A:call on people to prevent global warming. B:present the results from two research models. C:appeal to people to take adaptation as priority. D:forecast the future trends of global warming.

The objective of the migrant health program of the United States government is to provide grants for the development and enhancement of high quality health care services in rural areas for migrant and seasonal farm workers and their families so as to raise the status of health care for these people to that of the general population. This amelioration can be achieved by providing comprehensive heahh services, which are made aeeessible to people who move frequently, and by improving the physical environment so as to assure healthful living and working conditions wherever workers are located.
Grants are available to state and local health departmenls and other nonprofit agencies, organizations, and institutions. These funds can he used for the following purposes: to establish and operate general family health service facilities and clinics; to provide heahh education, training, and sanitation services to upgrade health conditions; and to initiate preventive health services. Preventive care in the form of immunization programs is the oldest aspect of the program.
The program further attempts to promote flexibility in locating health services where they will be accessible at times and places convenient to migrant workers and their families. The family heahh care clinic, with additional outreach services by field nurses and aides who visit migrant families in camps and at their homes for counseling and follow-up, constitutes the newest and most significant innovation in the initiate preventive health services. However, despite the introduction of innovative approaches, heahh care services for migrant workers are still limited and highly inadequate.
Although the migrant health program has no fixed matctling ratio, a grantee is required to pay part of the cost, which varies from project to project. Many rural counties do not have enough money to cover matching payments, nor do many states consider migran! workers’ health a budget priority. The costsharing requirement limits the potential effectiveness of the program, and literally hundreds of communities with a yearly influx of nngrant workers still lack organized local programs to provide the needed services.
A major problem for local or state health agencies is their inability to develop case histories and ongoing communication with migrant workers. Lack of knowledge regarding migrant workers’ health needs is another reason for the dearth of services. There has been little communication about health problems among communities, health professionals, and migrant workers themselves. Ignorance of a group’s special needs often leads to exclusion and rejection of that group and its prohlems. This is often the case with migrant workers, as evidenced by the enforcement of state residency requirement. It is, of course, impossible for most migrant workers to meet these requirements and become eligible fro" existing state and local heahh and welfare aid.
Which of the following limits the potential effectiveness of the program

A:A grantee need to pay no cost. B:Many states consider migrant workers’ health a budget priority. C:Migrant workers are not well-organized. D:Many local government can’t afford the part of the cost they should pay.

The objective of the migrant health program of the United States government is to provide grants for the development and enhancement of high quality health care services in rural areas for migrant and seasonal farm workers and their families so as to raise the status of health care for these people to that of the general population. This amelioration can be achieved by providing comprehensive heahh services, which are made aeeessible to people who move frequently, and by improving the physical environment so as to assure healthful living and working conditions wherever workers are located.
Grants are available to state and local health departmenls and other nonprofit agencies, organizations, and institutions. These funds can he used for the following purposes: to establish and operate general family health service facilities and clinics; to provide heahh education, training, and sanitation services to upgrade health conditions; and to initiate preventive health services. Preventive care in the form of immunization programs is the oldest aspect of the program.
The program further attempts to promote flexibility in locating health services where they will be accessible at times and places convenient to migrant workers and their families. The family heahh care clinic, with additional outreach services by field nurses and aides who visit migrant families in camps and at their homes for counseling and follow-up, constitutes the newest and most significant innovation in the initiate preventive health services. However, despite the introduction of innovative approaches, heahh care services for migrant workers are still limited and highly inadequate.
Although the migrant health program has no fixed matctling ratio, a grantee is required to pay part of the cost, which varies from project to project. Many rural counties do not have enough money to cover matching payments, nor do many states consider migran! workers’ health a budget priority. The costsharing requirement limits the potential effectiveness of the program, and literally hundreds of communities with a yearly influx of nngrant workers still lack organized local programs to provide the needed services.A major problem for local or state health agencies is their inability to develop case histories and ongoing communication with migrant workers. Lack of knowledge regarding migrant workers’ health needs is another reason for the dearth of services. There has been little communication about health problems among communities, health professionals, and migrant workers themselves. Ignorance of a group’s special needs often leads to exclusion and rejection of that group and its prohlems. This is often the case with migrant workers, as evidenced by the enforcement of state residency requirement. It is, of course, impossible for most migrant workers to meet these requirements and become eligible fro" existing state and local heahh and welfare aid.

A:A grantee need to pay no cost B:Many states consider migrant workers’ health a budget priority C:Migrant workers are not well-organized D:Many local government can’t afford the part of the cost they should pay