影响机床工作精度的主要因素有哪些?

题型:问答题 简答题

问题:

影响机床工作精度的主要因素有哪些?

考点:机电设备评估基础设备状态监测与故障诊断技术设备状态监测与故障诊断技术题库
题型:问答题 简答题

八正散与小蓟饮子组成中均含有的药物是()

A.木通、小蓟

B.生地黄、滑石

C.栀子、大黄

D.竹叶、生地黄

E.木通、滑石

题型:问答题 简答题

马柯维茨的投资组合理论的理性人假设包括()。

A.厌恶风险

B.偏好收益

C.存在一个可以用均值和方差表示自己投资效用的均方效用函数

D.偏好风险

E.风险中性

题型:问答题 简答题

Some people believe that international sports create goodwill between the nations and that if countries play games together they will learn to live together. Others say that the opposite is true: that international competitions encourage false national pride and lead to misunderstanding and hatred. There is probably some truth in both arguments, but in recent years the Olympic Games have done little to support the view that sports encourage international brotherhood. Not only was there the tragic incident involving the murder of athletes, but the Games were also ruined by lesser incidents caused mainly by minor national competitions.

 One country received its second-place medals with visible indignation(愤慨)after a hockey final. There had been noisy scenes at the end of the hockey match, the loser’s objection to the final decision. They were sure that one of their goals should not have been disallowed and that their opponents’ victory was unfair. Their manager was very angry and he said, “This wasn’t hockey. Hockey and the International Hockey Federation are finished.” The president of the Federation said later that such behavior could result in the suspension(停赛)of the team for at least three years.

 The American basketball team announced that they would not give up the first place to Russia, after a disputable end to their competition. The game had ended in disturbance. It was thought at first that the United States had won, by a single point, but it was announced that there were three seconds still to play. A Russian player popped the ball into the basket. It was the first time the USA had ever lost an Olympic basketball match. An appeal jury discussed the matter for four and a half hours before announcing that the result would stand. The American players then voted not to receive the silver medals.

 Incidents of this kind will continue as long as sports are played competitively rather than for the love of the game. The suggestion that athletes should compete as individuals, or in non-national teams, might be too much to hope for. But in the present organization of the Olympics there is far too much that encourages aggressive patriotism(爱国主义).

小题1:According to the author, recent Olympic Games have ________.

A.caused national pride for athletes

B.created goodwill between the nations

C.hardly showed any international friendship

D.led to less misunderstanding between countries小题2:What did the manager mean by saying “Hockey and the International Hockey Federation are finished”?

A.His team would no longer take part in international games.

B.There should be no hockey matches organized by the Federation.

C.Hockey and the Federation are both ruined by the unfair decisions.

D.The International Hockey Federation should be dismissed forever.小题3:By taking the basketball game for example, the author wants to prove that ________.

A.too much patriotism was displayed in the games

B.the announcement to prolong the match was wrong

C.the appeal jury was too hesitant in making the decision

D.the team was right in refusing to accept the silver medals小题4:What conclusion can be drawn from the passage?

A.Sports should be played for the love of one’s nation.

B.Unfair decisions are common in the Olympic Games.

C.International competitions will lead to misunderstanding.

D.The organization for the Olympic Games must be reformed.

题型:问答题 简答题

胶带老化可能造成()。

题型:问答题 简答题

()是为回答检索提问、实现检索目标而制定的全盘计划或方案。

更多题库