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[单选题]
The small country____ itself with the stronger power for protection.
A
attached
B
allied
C
geared
D
adapted
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试题答案：
B
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9. (A) regret (B) mark (C)remember (D) touch
3.Friction is a force which opposes motion. Much of the energy supplied to a complicated machine with many moving parts is wasted in overcoming this opposition. The energy is converted into useless heat. The amount thus lost can be considerably reduced and the life of the machine prolonged by careful lubrication. This reduction improves the efficiency of the machine. Another way in which friction is reduced is to substitute roller or ball bearings for the earlier type of bearing, in which the surfaces in contact move by sliding. Bearings of these later types are used very extensively in many kinds of modern machinery.It must not be assumed, however, that friction is always a disadvantage. In many instances it is highly important. Belts are often used in conveying power from one machine to another. In the absence of friction, this could not be done. The driving wheel would not run the belt, neither would the belt run the wheel to driver. Without friction, then, belted machinery could not be used. Again in the case of all motor vehicles, friction is essential in the operation of the brake. Were there no friction, there could be no brake. But even this illustration does not give an adequate picture of the importance of friction. The vehicle could not even be started if it were not for the friction exerted between the tires and the road. Nails hold in wood, and screws hold in either wood or metal by reason of friction, without which they would be useless. Walking is difficult enough on an icy pavement, but it would be wholly impossible if there were no friction at all between the shoe and the pavement.(5分)3.1Friction arises when____.(1分)A. an opposing force of motion existsB. the energy is wastedC. everything is motionlessD. a complicated machine is supplied with energy
24.A lawyer friend of mine has devoted herself to the service of humanity. Her special area is called"public interest law". Many other lawyers represent only clients who can pay high fees.All lawyers have had expensive and highly specialized training, and they work long, difficult hours for the money they earn. But what happens to people who need legal help and cannot afford to pay these lawyers' fees? Public interest lawyers fill this need. Lisa , like other public interest lawyers, earns a salary much below what some lawyers can earn.Because she is willing to take less money, her clients need the help,even if they can pay nothing at all. Some clients need legal help because stores have cheated them with faulty merchandise. Others are in unsafe apartments, or are threatened with eviction (驱逐，赶出 )and have no place to go to. Their cases are called "civil" cases. Still others are accused of criminal acts, and seeking those public interest lawyers who handle "criminal" cases.These are just a few of the many situations in which men and women who are public interest lawyers serve to extend justice throughout our society.24.1 A person who needs and uses legal help is called a _____.A.lawyerB.clientC.tenantD.case worker
I would have paid _______ for my new dress if the salesman had insisted, because I loved it at the first sight.(1分)
You can never be _______ careful in choosing your major, as it is crucial for your future study and career.(1分)
3.2The central idea of the first paragraph is to____.(1分)
3.4 Which of the following is the way that a computer does its processing?____(1分)
The young lady who caught the baby falling from the tenth floor _______ by the local media.(1分)
The mechanic examined the car engine____ but could find nothing wrong with it.
21.3 It seems that manufacturers will remain reluctant to make improvements unless ________.
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