Preferred channel marks are colored with（）．

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• Preferred channel buoys indicate the preferred channel to transit by（）.

  A . odd or even numbers B . the color of their top band C . the location of the buoy in the channel junction D . the buoy's light rhythm

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• 华为VRP系统默认的LOCAL_PREF以及PREFERRED-VALUE值是多少？（）

  A . 0，32768 B . 100，0 C . 255，100 D . 32768，0

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• MOTO参数中已知：max_number_of_sdcch=24、number_sdcch_preferred=16sdcch_need_high_water_mark=4、sdcch_need_low_water_mark=16，当sdcch被占用几个时，TCH会向sdcch转换（）

  A . 24 B . 21 C . 12 D . 13

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• When a buoy marks a channel bifurcation，the preferred channel is NOT indicated by（）.

  A . the shape of an unlighted buoy B . the light color of a lighted buoy C . the color of the topmost band D . whether the number is odd or eve

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• A preferred-channel buoy will show a（）.

  A . white light whose characteristic is Morse (A) B . group-occulting white light C . composite group-flashing (2 + 1) white light D . composite group-flashing (2 + 1) red or green light

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• The information regarding ports such as buoyed channels,fairway,location and number of terminals,river channels,details of navigational marks,location of overhead bridges, underground cables etc. are shown in（）

  A . small-scale charts B . medium-scale charts C . large-scale charts D . natural scale chart

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• When approaching a preferred-channel buoy，the best channel is NOT indicated by the（）.

  A . light characteristic B . color of the uppermost band C . shape of an unlighted buoy D . color of the light

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• What is one reason that WPA encryption is preferred over WEP?（）

  A . A WPA key is longer and requires more special characters than the WEP key. B . The access point and the client are manually configured with different WPA key values. C . WPA key values remain the same until the client configuration is changed. D . The values of WPA keys can change dynamically while the system is used.

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• 请问LOCAL_PREF和PREFERRED-VALUE两者有什么区别？（）

  A . LOCAL_PREF拥有更高的优先级 B . PREFERRED-VALUE可针对邻居进行设置 C . LOCAL_PREF是影响入流量的路径选择 D . BGP路径选择的原则最先比较LOCAL_PREF，再比较PREFERRED-VALUE

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• Daymarks marking the starboard side of the channel when going towards the sea are（）.

  A . green squares B . green triangles C . red squares D . red triangle

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• What is one reason that WPA encryption is preferred over WEP?（）

  A . A WPA key is longer and requires more special characters than the WEP key. B . The access point and the client are manually configured with different WPA key values. C . WPA key values remain the same until the client configuration is changed. D . The values of WPA keys can change dynamically while the system is used.

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• Preferred channel marks are aids to navigation which all following marks other than（）．

  A . channel junctions B . bifurcations C . fishing traps D . wrecks or obstructio

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• A preferred-channel buoy may be（）.

  A . lettered B . spherical C . showing a white light D . All of the above

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• The preferred agent used in fighting a helicopter crash fire is（）.

  A . CO B . dry chemical C . water D . foam

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• What is the light characteristic of a lighted，preferred-channel buoy? （）

  A . Group flashing B . Composite group flashing C . Interrupted quick flashing D . Fixed and flashing

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• 如果max_number_of_sdcchs=24 number_of_sdcchs_preferred=16 sdcch_need_low_water_mark=16 sdcch_need_high_water_mark=4 那么在第一次由TCH向SDCCH再配置时，有多少个SDCCH已经被占用？（）

  A . 12 B . 21 C . 20 D . 13

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• The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．

  A . fish trap areas B . naval exercise areas C . underwater cables D . recommended track line

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• Mr. Johnson preferred ___ heavier work to do.

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• The quasilogical style is preferred by westerners.

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• About half of new equity issues are preferred stock.

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• Preferred stock usually has voting rights.

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• Common Stock and Preferred Stock

  A public corporation issues certificates of ownership, called common stock, which may be traded on stock exchanges. Anyone can buy and sell shares of common stock. Owners of stock are referred to as shareholders and stockholders. Common stockholders are accorded certain rights by the corporate charter. In the United States, these rights vary from state to state, but in general the articles of incorporation spell out voting rights and rights to receive profits. Common stockholders are the voting owners of a corporation. They are usually entitled to one vote per share. They may vote on numerous affecting the corporation (including a decision to sell or merge with anther corporation)and elect a board of directors, who, in turn , hire managers to run the business. A majority shareholder is one who owns over 50 percent of the outstanding shares in a corporation and, thus, can call the shots. All other shareholders are minority shareholders. In large corporations no single person or organization owns anywhere near a majority interest. In large, publicly owned corporations a shareholder with as little as 10 percent of the shares may control the corporation effectively. If things go badly, a coalition of so called dissident shareholders may gather enough votes to replace the existing board of directors; the new board may fire the existing management and bring in their own management team. Although common stock represents ownership in a company, it does not guarantee the owners a specified rate of return. As owners, the stockholders receive profits after all expenses, including debts and taxes, have been paid. They receive profits from the business in the form. of dividend payments, which represent a percentage of profits. Not all after-tax profits are paid to the stockholders in dividends. Directors usually decide quarterly how much, if any, if the profits they wish to distributed to the owners. The profits are either distributed to the owners in dividends or they are reinvested bank into the company in the form. of retained earnings. If the company decides to keep the profits, the company may become more valuable and the price of the stock usually goes up. Some investors prefer profits in the way of dividends while others speculate for an increase in the price of stock. If a company goes broke, common stockholders get last claim on whatever is left over. Corporations may also issue preferred stock to investors. Preferred stock usually has no vote in the election of the board of directors, but does get preference in the distribution of the company's earnings. It offers investors a different type of security and may be issued only after common stock had been issued. The term" preferred" applies to two conditions. First, preferred stockholders gain preferential treatment in the matter of dividends; That is, they receive a fixed rete of dividends prior to the payment of dividends on common shares. Second, if the company goes out of business or liquidates, preferred stockholders are closer to the front of the line than common stockholders when distributing the company's assets. Dividends to preferred stock may be cumulative or noncumulative. Cumulative preferred stock maintained its claim to dividends even if the company had a bad year in 1994, they might decide not to pay dividends. But if they had a good year in 1995, and declared stock dividends do not accumulate. If dividends are not declared, noncumulative owners lose their claim to the profit of that period. All in all, common stock usually has more control through voting privileges, greater chance for high returns, and more risk, while preferr A．the returns to common stockholders B．the majority and minority stockholders C．the voting rights of common stockholders D．the formation of common stock

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• Preferred stockholders receive______.

  A．coupon payments B．fixed dividend payments C．variable dividend payments D．payment in the form. of additional stock

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• An analyst gathered the following data about a company:Capital structure Required rate of return30% debt 10% for debt20% preferred stock 11% for preferred stock50% common stock 18%

  A．13.0%. B．14.2%. C．18.0%.

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