液压辅助元件中管接头通常有哪几种类型?

题型:问答题 简答题

问题:

液压辅助元件中管接头通常有哪几种类型?

考点:液压支架(柱)修理工液压支架工液压支架工题库
题型:问答题 简答题

阅读理解。

     As a world food, potatoes are the second in human consumption (消耗量) only to rice. And thin,

salted and cooked potato chips are Americans' favourite snack food.    

     French fries were popular in France in the 1700s. And the recipe was brought to America by

Thomas Jefferson. In the summer of 1853 , American Indian George Crum had a job as a cook at a

beautiful place in Saratoga Springs, New York. His job was to make French-fried potatoes for the

guests.    

     Once, a guest found Crum's French fries too thick for him and asked Crum to do it again. Crum cut

it thinner,but the man still wasn't satisfied. Crum  was very angry and decided to teach the guest a lesson.

And then he put too much salt on it.  

     To Crum's surprise, the guest liked the paper-thin potatoes very much, and other diner asked Crum's

potato chips, too. Soon they were sold, first locally, then all over the New England area.  

     For many years after their creation, potato chips were mainly a dinner dish. In the 1920s, Herman

Lay had potato chips in the South and his potato chips became the first successfully marketed national

brand.    

      Today, Americans eat more potato chips than any other people in the world.

1. Which is the best title of the passage?    

A. The invention of potato chips.    

B. The history of potato chips.    

C. Americans like potato chips.    

D. The popularity of potato chips.

2. _______ brought potato chips to America.

A. Thomas Jefferson        

B. George Crum

C. Herman Lay              

D. None of the above

3. Why did the guest ask Crum to cook the potato chips again?    

A. Because they were too expensive.

B. Because they were too small.    

C. Because they were too thick.        

D. Because they were too salty.

4. For many years, potato chips were eaten _______.

A. at breakfast  

B. at lunch  

C. at dinner 

D. at any time

5. _______ eat the most potato chips in the world.

A. Frenchmen  

B. Americans  

C. Italians  

D. Australians

题型:问答题 简答题

下列不属于浪漫主义的作品是

题型:问答题 简答题

毛 * * 《沁园春雪》中“数风流人物,还看今朝”的“风流人物”的意思是__________。

题型:问答题 简答题

可引起某些钻井液处理剂的分解,而使钻井液性能变坏的原因是()。

A、砂侵

B、油气侵

C、水侵

D、地温高

题型:问答题 简答题

下面是一个Applet程序,其功能是在窗口中绘制3个半径递增的圆,并用RGB三原色对这 3个圆填充。要求建立一个绘制圆的类,实现根据指定颜色进行填充的功能,在主程序中通过调用这个类的方法实现圆的绘制。请改正程序中的错误(有下画线的语句),使程序能输出正确的结果。
注意:不改动程序的结构,不得增行或删行。
import java.applet.*;
import java.awt.*;
import java.awt.*;
/*
<applet code="ex15_3.class"width=800 height=400>
</applet>
*/
class CanvasCircle extends Canvas
private Color cCircle;
public CanvasCircle(Color c)
cCircle=c;

public void paint(Graphics g)
int dimCircle,xCircle,yCircle;
Dimension sizeCurrent=getSize();
if(sizeCurrent.width>sizeCurrent.height)
dimCircle=sizeCurrent.width;

else
dimCircle=sizeCurrent.height;

g.setColor(cCircle);
xCircle=(sizeCurrent.heighe-dimCircle)/2;
yCircle=(sizeCurrent.width-dimCircle)/2;
g.fillOval(xCircle,yCircle,dimCircle,dimCircle);


public class exl5_3 extends Applet
public void init()
GridBagLayout gbl=new GddBagLayout();
GridBagConstraints gbc=new CridBagConstraints();
CanvasCircle circleNew;
setLayout(gbl);
gbc.weightx=1.0;
gbc.weighty=1.0;
gbc.fill=GridBagConstraints.BOTH;
circleNew=new CanvasCircle(Color.red);
gbl.setConstraints(circleNew,gbc);
add(circleNeW);
gbc.weightx=1.5;
gbc.weighty=1.5;
circleNew=new CanvasCircle(Color.green);
gbl.sctConstraints(eircleNew,gbc);
add(circleNew);
gbc.weightx=2.0;
gbc.weighty=2.0;
circleNew=new CanvasCircle(Color.blue);
gbl.setConstraints(circleNew,gbc);
add(circleNew);


ex15_3.html
<HTML>
<HEAD>
<TITLE>ex15_3</TITLE>
</HEAD>
<BODY>
<applet code="ex15_3.class"width=800 height=400>
</applet>
</BODY>
</HTMI>

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