-
Pistons may be made in （） in order to keep the weight down for balancing purposes at high speed.
A . cast iron
B . forged steel
C . stainless steel
D . aluminum alloy
-
Application A holds an Update lock on a single row and application B is trying to read that row. If both applications are using isolation level UR, which of the following will occur?（）
A . Application B will read the row.
B . Applications A and B will cause a deadlock situation.
C . Application B will wait until application A releases the Update lock.
D . Application A will be terminated so that application B can read the row.
-
You need to write a code segment that will create a common language runtime （CLR） unit of isolation within an application.Which code segment should you use？（）https://assets.asklib.com/images/image2/2018072708473666399.jpg
A . A
B . B
C . C
D . D
-
When underway in a channel,you should keep to the（）.
A . middle of the channel
B . starboard side of the channel
C . port side of the channel
D . side of the channel that has the widest tur
-
When underway in a channel，you should keep to the（）.
A . Middle of the channel
B . Starboard side of the channel
C . Port side of the channel
D . Side of the channel that has the widest tur
-
You are the Cisco Network Designer in Cisco.com. What is the term for a logical SAN which provides isolation among devices physically connected to the same fabric？（）
A . InterSwitch Link
B . Virtua LAN
C . Virtual Output Queuing
D . virtual storage area network
-
We usually keep a large supply （）stock.
A . at
B . on
C . i
-
A HACMP/XD：HAGeo cluster has been installed with four nodes， two nodes at each site. The cluster is protected from site isolation by the DBFS facility in HACMP/XD：HAGeo. In the event of a site failure，what happens？（）
A . The dominate site will always assume the non-dominate site has failed and continue processing.
B . The dominate site initiates a call to the non-dominate site to verify if any of the nodes are functional.
C . The non-dominate site initiates a call to the dominate site to verify if any of the nodes are functional.
D . The nodes are completely independent and can call each other if they detect a total failure of the ZGeo_Primary network.
-
What is the term for a logical SAN which provides isolation among devices physically connected to the same fabric?（）
A . ISL
B . IVR
C . VoQ
D . VSANs
E . Enhanced ISL
-
What is the term for a logical SAN which provides isolation among devices physically connected tothe same fabric？（）
A . ISL
B . IVR
C . VoQ
D . VSANs
E . Enhanced ISL
-
You are the Cisco Network Designer in Cisco.com. What is the term for a logical SAN which provides isolation among devices physically connected to the same fabric?（）
A . InterSwitch Link
B . Virtua LAN
C . Virtual Output Queuing
D . virtual storage area network
-
Pistons of marine medium speed diesel engines may be made of （） in order to keep the weight down for balancing purpose at high speed.
A . lead
B . forged steel
C . alloy steel
D . aluminum alloy
-
A sentence is a （） concept, and the meaning of a sentence is often studied in isolation.
A . pragmatic
B . grammatical
C . mental
D . conceptual
-
If a child is brought up in isolation away from human beings, he does not ________ language.
-
In the poem “Stopping by Woods on a Snowy Evening”, “promises to keep” may be interpreted as metaphorically referring to ____.
-
Loneliness is marked by a sense of isolation. Solitude, on the other hand, is a state of being alone without being lonely and can lead to self-awareness.
-
__________，we keep records oil all the experiments so that we may have enough data．
A.As a whole
B.As a rule
C.On the average
D.By all means
-
An apple a day keeps the doctor away.（英译汉)
此题为判断题(对，错)。
-
A raise B add C take D keep
-
阅读理解：If you think a high-factor sunscreen（防晒霜)keeps you safe from harmful rays, you may be wrong
Question 1 to 5 are based on the following passage.
If you think a high-factor sunscreen(防晒霜)keeps you safe from harmful rays, you may be wrong. Research in this week&39;s Nature shows that while factor 50 reduces the number of melanomas(黑瘤)and delays their occurrence, it can&39;t prevent them. Melanomas are the most aggressive skin cancers. You have a higher risk if you have red or blond hair, fair skin, blue or green eyes, or sunburn easily, or if a close relative has had one. Melanomas are more common if you have periodic intense exposure to the sun. Other skin cancers are increasingly likely with long-term exposure.
There is continuing debate as to how effective sunscreen is in reducing melanomas—the evidence is weaker than it is for preventing other types of skin cancer. A 2011 Australian study of 1,621 people found that people randomly selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed. A second study, comparing 1,167 people with melanomas to 1,101 who didn&39;t have the cancer, found that using sunscreen routinely, alongside other protection such as hats, long sleeves or staying in the shade, did give some protection. This study said other forms of sun protection—not sunscreen—seemed most beneficial. The study relied on people remembering what they had done over each decade of their lives, so it&39;s not entirely reliable. But it seems reasonable to think sunscreen gives people a false sense of security in the sun.
Many people also don&39;t use sunscreen properly-applying insufficient amounts, failing to reapply after a couple of hours and staying in the sun too long. It is sunburn that is most worrying-recent shows five episodes of sunburn in the teenage years increases the risk of all skin cancers.
The good news is that a combination of sunscreen and covering up can reduce melanoma rates, as shown by Australian figures from their slip-slop-slap campaign. So if there is a heat wave this summer, it would be best for us, too, to slip on a shirt, slop on(抹上)sunscreen and slap on a hat.
1.What is people&39;s common expectation of a high-factor sunscreen？
A.It will delay the occurrence of skin cancer.
B.It will protect them from sunburn.
C.It will keep their skin smooth and fair.
D.It will work for people of any skin color.
2.What does the research in Nature say about a high-factor sunscreen？
A.It is ineffective in preventing melanomas.
B.It is ineffective in case of intense sunlight.
C.It is ineffective with long-term exposure.
D.It is ineffective for people with fair skin.
3.What do we learn from the 2011Australian study of 1,621 people？
A.Sunscreen should be applied alongside other protection measures.
B.High-risk people benefit the most from the application of sunscreen.
C.Irregular application of sunscreen does women more harm than good.
D.Daily application of sunscreen helps reduce the incidence of melanomas.
4.What does the author say about the second Australian study？
A.It misleads people to rely on sunscreen for protection.
B.It helps people to select the most effective sunscreen.
C.It is not based on direct observation of the subjects.
D.It confirms the results of the first Australian study.
5.What does the author suggest to reduce melanoma rates？
A.Using both covering up and sunscreen.
B.Staying in the shade whenever possible.
C.Using covering up instead of sunscreen.
D.Applying the right amount of sunscreen.
-
It is necessary for a receptionist to keep a of visits.
-
A correspondent bank may supply the following services to other commercial banks:A.keeping accounts,B.assisting in the sale or purchase of assets,C.providing information about capital markets
A．Right
B．Wrong
C．Doesn't say
-
Is language, like food, a basic human need without which a child at a critical period of life can be starved and damaged？ Judging from the drastic experiment of Frederick Ⅱ in the thirteenth century, it may be. Hop hag to discover what language a child would speak if he heard no mother tongue, he told the nurses to keep silent.
All the infants died before the first year. But clearly there was more than lack of language here. What was missing was good mothering. Without good mothering, ill the first year of life especially, the capacity to survive is seriously affected.
Today no such severe lack exists as that ordered by Frederick. Nevertheless, some children are still backward in speaking. Most often the reason for this is that the mother is insensitive to the signals of the in fact, whose brain is programmed to learn language rapidly. If these sensitive periods are neglected, the ideal time for acquiring skills passes and they might never be learned so easily again. A bird learns to sing and to fly rapidly at the right time, but the process is slow and hard once the critical stage has passed.
Experts suggest that speech stages are reached in a fixed sequence and at a constant age, but there are cases where speech tins started late in a child who eventually turns out to be of high IQ. At twelve weeks a baby smiles and makes vowel-like sounds; at twelve months he can speak simple words and understand simple commands; at eighteen months he has a vocabulary of three to fifty words. At three he knows about 1000 words which he can put into sentences, and at four he knows iris language differs from that of his parents in style. rather than grammar.
Recent evidence suggests that an infant is born with the capacity of speaking. What is special about man's brain, compared with that of the monkey, is the complex system which enables a child to connect the sight and feel of, say, a toy-bear with the sound pattern "toy-bear". And even more incredible is the young brain's ability to pick out an order in language from the mixture of sound around him, to analyze, to combine and recombine the parts of a language in new ways.
But speech has to be induced, and this depends on interaction between the mother and the child, where the mother recognizes the signals in the child's babbling, grasping and smiling, and responds to them. Insensitivity of the mother to these signals dulls the interaction because the child gets discouraged and sends out on- ly the obvious signals. Sensitivity to the child's non-verbal signals is essential to the growth and development of language.
The purpose of the Frederick Ⅱ's experiment was ______.
A．to prove that children are bom with the ability to speak
B．to discover what language a child would speak without hearing any human speech
C．to find out what role careful nursing would play in teaching a child to speak
D．to prove that a child would be damaged without learning a language
-
Escaping a fire is a serious matter. Knowing what to do before a fire breaks out can save a life. For example, people should know the safety measures to take before opening a hall door during a fire. Also, make sure everyone knows how to unlock doors that may be in the escape path. At times, a key is needed to unlock a door from the inside. So, keep the key in the lock, or, you can put the key on a key ring and put it where it can be found easily.
If you live in an apartment, know the ways you can use to get out. Show everyone in the family these routes. Stress the importance of using stairways or fire escapes, not elevators.
From most homes and the lower floors of apartment buildings, escape through windows is possible. Learn the best way of leaving by a window with the least chance of serious injury.
In a home fire, windows are often the only means of escape. The second floor window sill is usually not more than 13 feet from the ground. An average person, hanging by the fingertips, will have a drop of about six to the ground. Of course, it is after to jump a short way than to stay in a burning building. Rolling away from the building when you land.
Windows are also useful when you are waiting for help. Often you'll be able to stay in the room for several minutes if you keep the door closed and the windows open. Keep your head low in the window to be sure you get fresh air rather than smoke that may have leaked into the room.
On a second or third floor, the best windows for escape are those which open onto a roof or balcony. From the roof or balcony, a person can either drop to the ground or await rescuer. Dropping onto cement or pavement might end in injury. Bushes, soft earth, and grass can help to break a fall. A rope ladder should be considered when the drop is too great.
In a town where the fire department acts quickly, it may be best to wait for rescuer. Close the doors and wait by an open window for help. Shout for help. Be sure to close the door before opening a window. Otherwise, smoke and fire may be drawn into the room by the draft.
From most homes you can escape a fire through the ______.
A．attic
B．garage
C．windows
D．balcony
