题目内容
（请给出正确答案）
您使用[Remove from Inventory(从清单移除)] 命令从清单中移除了虚拟机。下列哪种方法可将虚拟机返回清单？()
A. 断开主机服务器的连接，然后重新连接。
B. 右键单击主机服务器，并选择[Return VM to Inventory(将虚拟机返回清单)] 中。然后完成向导。
C. 使用[New Virtual Machine(新建虚拟机)] 向导创建新的虚拟机，但并不创建新的磁盘，而是选择虚拟机的现有磁盘。
D. 无法将虚拟机返回清单
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A、water vapour
B、CO
C、solid particle
请在下列空白处填上适当的单词：
Some common ______1____can help you in building effective document management. The files can be found easily when you [label] your files and folders with names such as ___2____ and school names. You can have a quick idea of the ___3___types if you search through folders in thumbnail view. You also need to remove __4____files to make it clear and put things similar together in a folder. And keeping files in ____5___ order is a good way to sort out all files. Of course, you should___6_____ and reorganize files from a certain period of time to make sure they are in the_____7_____ place.
A.mongostat是mongodb自带的状态检测工具
B.MongoDB中聚合(aggregate)主要用于处理数据(诸如统计平均值，求和等)，并返回计算后的数据结果
C.MongoDB中使用createCollection()方法来创建集合
D.MongoDB中使用remove()方法来删除集合
Technology makes it more difficult to separate ourselves from work. In times past, it was possible to have a stressful workplace, go home, and relax. Since less work was mental and more was physical, it was relatively easy to remove oneself —physically and mentally —from it. The sophisticated communication technology available today was not yet developed. In contrast to the "good old days," it is no longer possible for busy men and women to go home or go on vacation and truly "get away from it all." It becomes difficult to relax when you are carrying a beeper that may go off any minute. The result is higher levels of stress in men and women because technology enables others to "find them anywhere."
It is ironic that much technology is designed to make work easier and faster; presumably, this will make life easier for those who must operate the technology, but such is not the case. Witness the prophetic words of the great philosopher John Stuart Mill (1806- 1873): "It is questionable if all the mechanical inventions yet made have lightened the day's toil of any human being." How true this is despite the promise of "miraculous" new machinery ranging from a "new and more efficient" vacuum cleaner to the most sophisticated computer. The solution to living well lies not in new and better technology, but in the selective disuse of it so that life can be enjoyed in a more emotionally fulfilling way.
This passage mainly discusses ______.
A．modern man's life that is filled with stress and pressure
B．new technology that has failed to make modern man's life comfortable
C．the negative impact of advanced technology on men's psychological well-being
D．the contrast between contemporary life and life in the past
The trick in food photography is to show the food looking fresh， so many dishes have
stand-ins， just as movie stars do. “When I get my lights and cameras set up， I remove the
stand-in and put in the real thing，” explains Ray Webber， who photographs food for magazine
advertisements. “Sometimes I have to brush the meat with its juices because it may have dried out
a bit. A and when I‘m shooting (拍照) something like tomatoes， I always carry water to spray them with dew just before I shoot.”
Shooting food outdoors has special problems. “I‘m always worrying about flies or worms crawling up
a glass，” Webber explains， “my worry is that someday a dog will come up from behind and run off
with the food.” Once Webber was shooting a piece of cheese outdoors and needed something to make
its color beautiful. Finally he found it： a weed with lovely blue flowers. When the shot appeared，
several people were horrified-the weed was deadly nightshade!
Just before being photographed， some meats and vegetables are _______.
A. fanned
B. dyed
C. frozen
D. made wet
“再一次见到您很高兴”的英文译法是“()”。
A.We’re glad to see you a time
B.We’re glad to meet you aftertime
C.We’re glad to see you again
D.We’re glad to see you from
People who are near-sighted can only see things that are very close to their eyes.' Everything else is not so clear. Many people who do a lot of close work, such as writing, reading and sewing, become near sighted. Then they have to wear glasses in order to see distant (远处的) things clearly.
People who are far-sighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm's length. If they want to do much reading, they must get glasses, too.
Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光). This, too, can be corrected by glasses. Some people's eyes become cloudy because of cataracts (白内障). Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them."
Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle (角度). To prove this to yourself, look at an object out of one eye; then look at the same object out of the other eye. You will find the object's relation to the background (背景) and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.
We should take good care of our eyes ______.
A．only when we cannot see perfectly
B．only when we can see well
C．even if we can see well
D．only when we realize how important our eyes are
