A. The car is running out of gasoline.B：We'd better fill it up.以上对话是发生在以下哪种语境中_____。

A . diesel oil instead of fuel oil B . fuel oil instead of diesel oil C . diesel oil instead fuel oil D . fuel oil instead diesel oil

A .  Compilation fails. B .  An exception is thrown at runtime. C .  The code executes and prints “running”. D .  The code executes and prints “runningrunning”. E .  The code executes and prints “runningrunningrunning”.

A . None. The database will switch over to the stand-by archive-log destination directory.  B . A warning message will be written to the alert log of the database, but no adverse impacts to the database will be experienced.  C . The database will shut down, and will not restart until you correct the out-of-space situation.  D . The database will continue to try to write to the archive-log destination directory for one hour. After one hour, the database will shut down normally.  E . Once Oracle has cycled through all online redo logs, it will stop processing any DML or DDL until the out-of-space condition is corrected.

A . You must use the Get-MailboxStatistics cmdlet. B . You must use the Test-Mailflow cmdlet. C . You must use the Get-StoreUsageStatistics. D . You must use the Test-ServiceHealth cmdlet.

A . stub B . totally stubby C . NSSA D . totally NSSA

A . est B . es C . str D . st E .

A .  Compilation fails. B .  An exception is thrown at runtime. C .  The code executes normally and prints “bar”. D .  The code executes normally， but nothing prints.

A . 81 B . 7 C . 11 D . 0 E . false

A .  None. The database will switch over to the stand-by archive-log destination directory. B .  A warning message will be written to the alert log of the database，but no adverse impacts to the database will be experienced. C .  The database will shut down，and will not restart until you correct the out-of-space situation. D .  The database will continue to try to write to the archive-log destination directory for one hour. After one hour，the database will shut down normally. E .  Once Oracle has cycled through all online redo logs，it will stop processing any DML or DDL until the out-of-space condition is corrected.

A .  An exception is thrown. B .  The program exists without printing anything. C .  An error at line 1 causes compilation to fail. D .  An error at line 6 causes the compilation to fail. E .  “Running” is printed and the program exits.

A .  An exception is thrown. B .  The program exists without printing anything. C .  An error at line 1 causes compilation to fail. D .  An error at line 2 causes the compilation to fail. E .  “Running” is printed and the program exits.

A .  An exception is thrown. B .  The program exists without printing anything. C .  An error at line 1 causes compilation to fail. D .  An error at line 2 causes the compilation to fail. E .  “Running” is printed and the program exits.

A . notify the duty officer, reduce the engine speed, take some measures to remove failures B . notify the duty officer and stop the engine immediately, find the cause and remove failures C . notify the C/E D . notify the captai

A .  An exception is thrown. B .  The program exists without printing anything. C .  An error at line 1 causes compilation to fail. D .  An error at line 6 causes the compilation to fail. E .  “Running” is printed and the program exits.

A .  Cat B .  Dog C .  Compilation fails. D .  The code runs with no output. E .  An exception is thrown at runtime.

Two kinds of systems generate solar energy: passive and active. A passive solar energy system generates energy from fixed glass plates built into the structure, without the use of mechanical devices. A greenhouse is a good example of a building heated by passive solar energy. The sun's rays penetrate the glass panels to heat the interior of the greenhouse, and the heat is retained through tight construction. The same principle can be applied to heating homes and other buildings on sunny days. An active solar energy system makes use of mechanical devices and moving parts to maximize the amount of energy collected. For example, solar energy can be generated with photovoltaic cells, which are made from silicon, an abundant element. A bank of photovoltaic cells can be encased in glass and wired together to produce electricity. The bank of cells can be mounted on the roof at an angle that maximizes exposure to direct sunlight. Another device to generate solar energy is a flatplate collector, which is an insulated glass box, typically placed on the sun-facing roof. Inside the box are pipes filled with air or water. The heat that builds up in the pipes can be used for home heating and hot-water supplies. Two questions persist about solar energy: How can solar energy be used in colder climates？ How can solar energy be used on cloudy days？ Scientists have the technological means to overcome both problems, but the solutions may make solar energy more expensive for many people than other alternatives. The energy released from the sun is about 10,000 degrees F, but by the time the rays reach the earth the temperature is considerably lower, because the sun's energy has diffused over a large area during its long journey. To be useful energy in colder climates, the sun's diffused rays must be concentrated. The process of concentrating the sun's rays is not difficult. Scouts learn that sunlight focused with a lens at the proper angle can burn a piece of paper. In warmer climates, the sun's rays can provide heat and hot water with little concentration. In colder climates, compensation is made simply by collecting more of the sun's rays by building a larger collecting device and rotating the lenses as the sun's position in the sky changes. In cloudy weather, another system can store the energy generated from the sun. For example, water heated by the sun can be retained in protected storage containers. Because of high installation coasts, solar energy is more expensive than other sources of energy for most consumers. At this time, electricity provided by a solar power plant costs two or three times the amount of a coal-fired plant. But solar equipment is generally installed on the consumer's roof rather than at a central power plant, as is the case with other energy sources. A family must pay several thousand dollars to construct a solar energy system capable of providing virtually all household heat and electricity. The family is also responsible for maintenance and repair of the system. While initial construction costs are much higher, monthly heating and electricity bills are much lower once the system begins operation. Users of solar energy do not face rising monthly electricity bills from a power company, which passes to its consumers the increasing costs of purchasing fossil fuels and constructing new facilities. Solar energy is economical for consumers who remain in the same house for many years and can benefit from low monthly operating costs. For most families, solar energy will become more attractive when other energy sources become more expensive. One indication of solar energy's bright future is that petroleum companies have bought the m A．The technical problem of providing heat on cloudy days are not yet solved. B．It costs much to have a solar energy system installed at home. C．There are basically two types of solar energy. D．Solar energy is clean, inexhaustible and free of risk.

Paul nodded. “My brother gave it to me for Christmas.” The boy was astounded. “You mean your brother gave it to you and it didn’t cost you nothing？ Boy, I wish….” He hesitated. Of course Paul knew what he was going to wish for. He was going to wish he had a brother like that. But what the lad said jarred Paul all the way down to his heels. “I wish,” the boy went on, “that I could be a brother like that.” Paul looked at the boy in astonishment, then impulsively he added, “Would you like to take a ride in my automobile？” “Oh yes, I’d love that.” After a short ride, the boy turned and with his eyes aglow, said, “Mister, would you mind driving in front of my house？” Paul smiled a little. He thought he knew what the lad wante d. He wanted to show his neighbors that he could ride home in a big automobile. But Paul was wrong again. “Will you stop where those two steps are？” the boy asked. He ran up the steps. Then in a little while Paul heard him coming back, but he was not coming fast. He was carrying his little crippled brother. He sat him down on the bottom step, then sort of squeezed up against him and pointed to the car. “There she is, Buddy, just like I told you upstairs. His brother gave it to him for Christmas and it didn’t cost him a cent. And some day I’m gonna give you one just like it…, then you can see for yourself all the pretty things in the Christmas windows that I’ve been trying to tell you about.” Paul got out and lifted the lad to the front seat of his car. The shining-eyed older brother climbed in beside him and the three of them began a memorable holiday ride. That Christmas Eve, Paul learned what Jesus meant when he had said: “It is more blessed to give….” 1、The boy was astounded. A、He was very surprised B、He was so surprised that he was shocked C、He was extremely surprised D、The car was so beautiful that he felt excited 2、Paul looked at the boy…, then impulsively he added, “….” A、 he did this without planning and thinking B、he did this with careful thinking C、he was impelled by his brother to do this D、he was forced by his mother to do this 3、The boy was not coming fast because (). A、he was coming down the steps B、he wanted to sit down on the steps C、he wanted to see the car clearly D、he was carrying his crippled brother 4、He…squeezed up against him and pointed to the car. A、moved closer and touched him B、held him tightly in his arms C、pushed him nearer to the car D、pulled him closer and supported him 5、…the three of them began a memorable holiday ride. A、easy to remember B、likely to be noticeable C、worth remembering D、likely to be seen

A．at B．on C．in D．from