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[单选题]
Leifeng always helps people without expecting anything______ .(1分)
A
in turn
B
in return
C
for return
D
for turn
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试题答案：
B
答案解释：
相关题目
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
He will come to see you the moment he his work.(1分)
Only after serious consideration ______ help that old man to his feet.(1分)
2.4 How many types of classes are talked about in the passage?(1分)
1.4 The international date line is the name for____.(1分)
22.5Which of following statement is TURE according to the passage?(2分)
The average temperature of this winter is very low, which is only degrees ______ zero.(1分)
3. ( )is the study of the characteristics of language varieties, the characteristics of their functions and the characteristics of their speakers as these three constantly interact and change within a speech community.
23.A railroad was being built all the way down the east coast off Florida, from Jacksonville to Miami Negro workers were employed because they were cheap. A great many of them were in Daytona. Most of them had children. They were living in shacks worse than those in The Terry in Augusta. The children were running wild in the streets. Mary Bethune seemed to hear a voice say, "What is the place? Build your school there."
1.4 By "the two world powers" the author means____.(1分)
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1.
可用性有两个基本定义，即( )
2.
37.公司
3.
“曼陀铃”公司是一家饮料生产企业。公司未做任何市场调查,片面认定年轻消费者大都注重绿色、营养和健康,因此针对年轻消费者推出一款“低糖”、“不含防腐剂”的“原生态”果蔬饮料。该公司认为自己的产品只要质量好、有特色,就一定会获得消费者的青睐在推出该产品时,公司决定采用较高的价格,同时认为这样“好”的产品无需进行大量促销宣传,消费者也会趋之若。结果出乎公司意料的是,该产品上市后购买者寥寥无几。究其原因,首先是消费者对该产品不了解;其次是消费者对该饮料的“原生态”口味很难接受,导致该产品退出市场再无声息。问:(1)结合案例分析该公司奉行的市场营销哲学。(5分)(2)结合案例分析该公司在产品导入期采取的营销策略。(5分)
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The money spent on advertisements is _
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12.一氧化碳中毒与其他疾病相比而言，患者面部最大的特征是
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