如果设置loss percentage 需要与采购沟通吗（）

A.Throughput is the maximum available transmission rate in case of no packet losses.

B.Frame loss rate is the percentage of successfully forwarded packets out of a certain traffic loaD.Causes for packet loss include network congestion, timeout, disorder and frame. error.

C.Latency is the interval from when a packet is received to when it is forwarded in case of no packet losses. Perform. latency test for several times and take their average value.

D.Back-to-back frames refer to maximum number of packets that can be processed by an IP network device, in case of no losses of packets which are received at a minimum transmission interval.

A.[百分比(Percentage)]用来控制视图中显示的引导线百分比数量

B.[覆盖(Override)]可以将设置的颜色与视图中的毛发颜色混合

C.[最大头发数(Max、Hairs)]控制视图中显示的毛发最大数量

D.[作为几何体(AsGeometry)]选项可以将毛发转换为几何体模型

A.可通过执行display memory-usage命令来检查设备内存占用率，如果“Memory Using Percentage Is”超过80%，此时则需要特别关注

B.可通过执行display device命令来检查单板运行状态，单板“Online”应为“Present”

C.可通过执行display fan命令来查看风扇状态，当Present项为NO时，表示正常

D.可通过执行display ftp-server命令来查看FTP网络服务端口，未使用的FTP网络服务端口需要记录下来

for sale to a customer. There are costs of production, transportation, storage, advertising, and more. Each of these costs must bring in some profit at each stage: truckers must profit from transporting products, or they would not be in business. Thus, costs also include several layers of profits. The selling price of a product must take all of these costs(and built-in profits) into consideration. The selling price itself consists of a markup over the total of all costs, and it is normally based on a percentage of the total cost.

The markup may be quite high 90 percent of cost or it may be low. Grocery items in a supermarket usually have a low markup, while mink coast have a very high one. High markups, however, do not in themselves guarantee big profits. Profits come from turnover. If an item has a 50 percent markup and does not sell, there is no profit. But if a cereal has an 8 percent markup and sells very well, there are reasonable profits.

While most pricing is based on cost factors, there are some exceptions. Prestige pricing means setting prices artificially high in order to attract select clientele. Such pricing attempts to suggest that the quality or style. of the product is exceptional or that the item cannot be found elsewhere. Stores can use prestige pricing to attract wealthy shoppers.

Leader pricing and bait pricing are the opposites of prestige pricing. Leader pricing means setting low prices on certain items to get people to come into the stores. The products so priced are called loss leaders because little or no profit can be made on them. The profits are made from other products people buy while in the store. Bait pricing, now generally considered illegal, means setting artificially low prices to attract customers. The store, however, has no intention of selling goods at the bait prices. The point is to get people into the store and persuade them of the inferiority of the low-priced item. Then a higher-priced item is presented as a better alternative.

A common retail tactic is odd priced products. For some products of $300, the store will set the price at $295 or $299.95 to give the appearance of a lower price. Automobiles and other high-priced products are usually priced in this manner. For some reason $7995 has more appeal to a potential car customer than $8000.

Bid pricing is a special kind of price setting. It is often used in the awarding of government contracts. Several companies are asked to submit bids on a job, and normally the lowest bidder wins. A school system may want to buy a large number of computers. Several companies are asked to submit prices, and the school district will decide on the best bid based as well on considerations of quality and service.

What is the base of selling price？

A．the cost of production

B．a percentage of total cost

C．the cost of transportation

D．the cost of storage.

nce records began to be written down, it has been estimated that earthquake-related fatalities have numbered in the millions, and that earthquake-related destruction has been beyond calculation. The greater part of such damage and loss of life has been due to collapse of buildings and the effects of rockslides, floods, fire, disease, tsunamis (gigantic sea waves), and other observable events resulting from earthquakes, rather than from the quake themselves.

The great majority of all earthquakes occur in two specific geographic areas. One such area covers the Pacific Ocean and its bordering landmasses. The other extends from the East Indians to the Atlas Mountains, including the Himalayas, Iran, Turkey, and the Alpine regions. It is in these two great belts or zones that ninety percent of all earthquakes take place; they may, however, happen anywhere at any time.

This element of the unknown has for centuries added greatly to the dread and horror surrounding earthquakes, but in recent times there have been indications that earthquake forecast may be possible. By analyzing changes in animal behavior, patterns of movements in the earth‟s shell, variations in the earth‟s force of attraction, and the frequency with which minor earth shakes are observed, scientists have shown increasing success in expecting when and where earthquakes will strike. As a result, a worldwide earthquake warning network is already in operation and has helped to prepare for (and thus lessen) the vast destruction that might otherwise have been totally unexpected.

It is doubtful that man will ever be able to control earthquakes and get rid of their destructiveness altogether, but as how and why earthquakes happen become better

understood, man will become more and more able to deal with their possible damage before they occur.

1.Which of the following statements is true according to the passage？

A. Earthquake destruction is declining

B. Earthquake forecast is improving

C. Man is no longer fearful of earthquakes.

D. Man is capable of conquering earthquakes

2.We can infer from the passage that quakes __________.

A. may happen anywhere at any time

B. mostly strike in oceans and mountains

C. are unobservable in masses of land

D. are hardly the direct cause of fatalities

3.The phrase “this element of the unknown” (Paragraph 3) refers to ___________.

A. the extension of earthquake zones

B. the percentage of earthquake occurrences

C. when and where earthquakes may occur

D. what big damage earthquakes may cause

4.Man‟s research on earthquake forecast at present is to ____________.

A. reduce the loss from earthquake disasters

B. lower the frequency of earthquakes

C. release the energy that causes earthquakes

D. analyze the relationship between different earthquakes

5. Which of the following describes the author‟s purpose in writing the passage？

A. Inform. the reader

B. Entertain the reader

C. Disprove a concept

D. Question a concept

A.对于网规仿真、链路预算，输入的终端天线增益，通常为终端的最大天线增益。若是直接基于终端最大天线增益进行仿真、或链路预算，则可能导致仿真结果偏乐观。所以，针对eMBB的仿真，需要考虑一定的余量（即OTA损耗），用来等价

B.在终端的cable loss中设置3db的人体损耗和4db的OTA损耗

out are REM dream—the type that occur almost continuously during periods of rapid eye movement (REM) during sleep. But people also have NREM dreams—dreams that occur during periods without rapid eye movement called NREM sleep—although they are typically less frequent and less memorable than REM dreams. REM dreams have a story like or dream like quality and are more visual, vivid, and emotional than NREM dreams. Interestingly, blind people who lose their sight before age five usually do not have visual dreams, but they have vivid dreams involving the other senses. A popular belief about dreams is that an entire dream takes place in an instant, but in fact, it is not true. Sleep researchers have discovered that it takes about as long to dream a dream as it would to experience the same thing in real life.

Although some people insist that they do not dream at all, researchers say that all people dream unless they consume alcohol or take drugs that suppress REM sleep. Are dreaming and REM sleep essentially one and the same？ Some researchers have questioned an assumption

long held by some sleep experts that dreaming is simply the brain's effort to make sense of the random firing of neurons that occurs during REM sleep. Are the brain mechanisms responsible for REM sleep the same ones that create the rich dream world we experience？ The answer may be no. It is known that dreams do occur outside of REM sleep. Moreover, the REM state can exist without dreams. These two facts suggest that different but complementary brain mechanisms are responsible for REM sleep and the dreaming that normally occurs within it. There is mounting evidence, says British researcher Mark Solms, that dreaming and REM sleep, while normally occurring together, are not one and the same. Rather, the REM state is controlled by neural mechanisms in the brain stem, while areas farther up in the forebrain provide the common pathway that gives us the complex and often vivid mental experiences we call dreams.

Other researchers suggest that REM sleep aids in information processing, helping people sift through daily experience to organize and store in memory information that is relevant to them. Animal studies provide strong evidence for a relationship between REM sleep and learning. Some studies have revealed that animals increase their REM sleep following learning sessions. Other studies have indicated that when animals are deprived of REM sleep after new learning, their performance of the learned task is impaired the following day. But depriving subjects of NREM sleep had no such effect in the studies.

Research has shown that REM sleep serves an information-processing function in humans and is involved in the consolidation of memories after human learning. Researchers found that research participants learning a new perceptual skill showed an improvement in performance, with no additional practice, eight to ten hours later if they had a normal night's sleep or if the researchers disturbed only their NREM sleep. Performance did not improve, however, in those who were deprived of REM sleep.

There is no doubt that REM sleep serves an important function, even if psychologists do not know precisely what that function is. The fact that newborns have such a high percentage of REM sleep has led to the conclusion that REM sleep is necessary for maturation of the brain in infants. Furthermore, when people are deprived of REM sleep as a result of general sleep loss or illness, they will make up for the loss by getting an increased amount of REM sleep after the deprivation. This increase in the percentage of REM sleep to make up for REM deprivation is called a "REM rebound." Because the intensity of REM sleep is increased during a REM rebound, nightmares often occur.

Why does the author state "The answer may be no" in paragraph 2？

A．To introduce a theory that REM sleep and dreams are not necessarily connected.

B．To contrast dreaming before and after REM sleep.

C．To explain why dreaming and REM sleep are essentially the same.

D．To suggest that more dreams occur inside REM sleep than outside it.

根据上下文填入适当的内容完成译文

Accepting your present price will mearl great loss to us.let alone profit.We would like to place repeat orders with you if you could reduce your price at least by 5%.Otherwise,we have to shift to the other suppliers for our similar request.We hope you take our suggestion into serious consideration and give us your reply as soon as possible.

接受你方现时的报价意味着我们将有______，______。然而如果你们______，我们非常愿意向你方______。否则，我们只能转向______提出类似需求。我们希望你们______，并及早答复我方。

变货币政策。 a．政府能否仅利用财政政策实现目标？为什么？ b．设工具影响的经济模型如下： △Q=△G+0．2△M

当中央银行不改变货币政策时，政府希望不改变产出水平，又能降低通货膨胀2％时的最佳财政政策是什么？损失函数的值是什么？ c．如果中央银行愿意合作，最佳政策组合是什么？损失函数的值多大？ In some countries，the central bank is independent from the government．Consider a situationin which the government wants to reduce inflation without changing output，but the central bank would not change monetary policy． a．Can the government achieve its objectives by using only fiscal policy？Why？ b．Assume that the effect of instruments on targets in this economy are represented by the following model(in deviations from the baseline)：

and the loss function is

What is the optimal fiscal policy that the government should pursue when its objectives are to reduce inflation by two points without changing the level of output，if the central bank does not change monetary policy？What is the value of the loss function？ c．Assume nOW that the central bank decides to cooperate．What is the optimal policy mix？What is the value of the loss function？

A small percentage of the grain ______ ruined by the prolonged rain.

A. was

B. were

C. is

D. are