中速柴油机额定转速一般在()。A、600~1000r/min B、500~900r/

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问题:

中速柴油机额定转速一般在()。

A、600~1000r/min

B、500~900r/min

C、650~1200r/min

D、550~1000r/min

考点:特车泵工特车泵工题库
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物体重心确定方法不包括()。

A、计算法

B、称重法

C、悬吊法

D、几何中心法

题型:单项选择题

使用梯子高空作业时,梯子靠放的斜度应不小于60度。

题型:单项选择题

Americans are often contrasted with the rest of the world in terms of material possessions. We are accused of being materialistic, gadget crazy. And, as a matter of fact, we have developed material things for some very interesting reasons. Lacking a fixed class system and having all extremely mobile population, Americans have become highly sensitive to how others make use of material possessions. We use everything from clothes to houses as a highly evolved and complex means of ascertaining each other’s status. Ours is a rapidly shifting system in which both styles and people move up or down. For example:

The Cadillac (卡迪拉克) ad men feel that not only is it natural but quite insightful of them to show a picture of a Cadillac and a well-turned out gentleman in his early fifties opening the door. The caption (标题) underneath reads, "You already know a great deal about this man. "

Following this same pattern, the head of a big union spends an excess of $100, 000 furnishing his office so that the president of United States Steel cannot look down on him. Good materials, large space, and the proper surroundings signify that the people who occupy the premises (建筑物及其周围所属土地) are solid citizens, that they are dependable and successful.

The French, English, and the Germans have entirely different ways of using their material possessions. What stands for the height of dependability and respectability with the English would be old-fashioned and backward to us. The Japanese take pride in often inexpensive but tasteful arrangements that are used to produce the proper emotional setting.

Middle East businessmen look for something else-family, connections, friendship. They do not use the furnishings of their office as part of their status system; nor do they expect to impress a client by these means or to fool a banker into lending more money than he should. They like good things, too, but feel that they, as persons, should be known and not judged solely by what the public sees.

One of the most common criticisms of American relations abroad, both commercial and governmental, is that we usually think in terms of material things. "Money talks," says the American, who goes on talking the language of money abroad, in the belief that money talks the same language all over the world. A common practice in the United States is to try to buy loyalty with high salaries. In foreign countries, this maneuver almost never works, for money and material possessions stand for something different there from they do in America.

Americans are most commonly criticized for their ().

A. commercial relations abroad

B. governmental relations abroad

C. materialistic attitude toward their relations with other countries

D. lack of knowledge about other countries

题型:单项选择题

以下()不是传统的春季习俗。

A.元宵节

B.伏日节

C.社日

D.上巳

题型:单项选择题

有的领导干部为了维护个人和小团体的______,本着“你不犯我,我不犯你”的态度,相互“高抬贵手”,乃至相互“补台”,这种“和气”蔓延后最终是同上贼船。
填入横线部分最恰当的一项是( )。

A.不义之财
B.不当得利
C.不劳而获
D.坐收渔利

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