女，32岁，半年前开始皮肤黄染，且逐渐加深伴皮肤瘙痒。查体：眼内眦边有一黄疣，肝肋下

阅读理解。

     We think with our head. But can computers think?

     Does a computer have a head? We can use a computer to calculate, play games, send emails, do

 homework and other things. A computer has several parts.

     Which part is the head of the computer? In the main part of the computer, there is an element (元件)

 called CPU. That's the head of a computer. The keyboard and mouse are like a man's eyes and ears.

 They can get the information from the outside. And the monitor and printer are like a man's hands and

 mouth. They can send the information to the outside after the head-CPU thinks about it.

     We often use a computer. We use the keyboard and the mouse to give a computer some information.

  Then the computer sends the information to CPU. After CPU thinks about it, the computer gives the

 result (结果) to the monitor. Then we can see it!

1.We know from the passage the "head" of a computer is the_____.

    A. monitor    

    B. mouse  

    C. printer  

    D. CPU

2. We can use a computer to _____.

    A. send emails  

    B. look after babies   

    C. play games    

    D. A and C

3. The keyboard and mouse are like a man's _____.

    A. head and eyes  

    B. eyes and ears  

    C. hands and mouth  

    D. eyes and mouth

4. Which of the sentences is NOT right?

    A. We can calculate with a computer.    

    B. The keyboard and mouse can get information from the outside.

    C. The monitor and printer are like a man's hands and feet.

    D. We can get some information from the monitor.

5. Which picture is right to describe how a computer works?

简述天然色素提取的方法。

慢性肾衰竭氮质血症期的指标为（）

A.Ccr>50ml/min，Cr<178μmmol/L

B.Ccr<50ml/min，Cr>178μmmol/L

C.Ccr40ml/min，Cr>267μmmol/L

D.Ccr<30ml/min，Cr>356μmmol/L

E.Ccr<25ml/min，Cr>445μmmol/L

程序如下：
∥Java_2. java
import java. awt. *;
import java. awt. event. * ;
public class Java_2 extends Frame{
public Java_2( String s){
super(s);
}
public static void main( String args[ ] ){
Java_2 fr=new Java_2 ("Testing");
Button b=new Button( "Please press me!");
∥********** Found ************
b. addActionListener( (3) );
fr. add(b);
fr. setSize(200,200);
fr. addWindowListener( new WindowAdapter( ){
public void windowClosing( WindowEvent e){
System. exit(0);
}
});
∥********** Found **********
fr. setVisible( (4) );
}
}
class HandleButton implements ActionListener{
public void actionPerformed (ActionEvent e){
System. out. println("The button is pressed!");
}
}

标题栏是Word、Excel、浏览器等程序工作窗口的一个组成部分，简述标题栏的作用。