[填空题]
请完善程序(程序文件名：Java_2.java)，并进行调试。请在下画线处填入正确内容，然后删除下画线。请勿删除注释行和其他已有的语句内容。
题目要求：
对字符串进行缓存处理，程序运行的某次结果如下图所示。
源程序：
import javax.swing.*;
public class Java_2 {
public static
void main( String args[] ) {
StringBuffer buf = new StringBuffer( "你好!祝你好运!");
String output = " buf = " + buf.toString( ) + " /nCharacter at 0:" +
buf.charAt(0)+
" /nCharacter at 4: " + buf.charAt(4) ;
char charArray[]= (1) char[buf.length( )];
buf. (2) ( 0, buf.length（ ）,charArray,0);
output + = " /n/n 在字符串缓存中的字符时: " ;
for(int i = 0; i＜
(3) ; ++i ) output += charArray[i];
buf.setCharAt( 0,’您’) ;
buf.setCharAt( 6,’材’);
output + = " /n/nbuf = " + buf.toString( ) ;
buf.
(4) ;
output + = " /n/nbuf = " +
b
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B.错误
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A.定子、转子和接线端子
B.定子、转子和支撵构件
C.定子、转子和端盖
D.定子、转子和线圈
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A.正确
B.错误
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B.错误
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B.8
C.3
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A. 0 1 2 3
B. 1 2 3 4
C. 0 1 3 2
D. 出错信息
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B.珍珠点
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D.星点
E.车轮纹
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A.粗基准
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A.正确
B.错误
[单项选择]表达式～0x11的值是( )。
A. 0xFFEE
B. 0x71
C. 0x0071
D. 0xFFE1
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A.正确
B.错误
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A.正确
B.错误
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A. 10—20min
B. 20—30min
C. 30—40min
D. 15—20min
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A.正确
B.错误
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A. 发热
B. 腰痛
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E. 以上都对
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B.错误
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B. 气湿
C. 噪声
D. 气温
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[单项选择]Passage Two
Questions 57 to 61 are based on the following passage.
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At the age of 3, the children who attended the educational day-care center had significantly higher IQs than did the home-reared children. This difference was likely due to the decline in the IQs of the home-reared children during the period from 12 to 18 months of
A. educational day-care centers are the best place for children to grow up in
B. parents fail to provide an adequate environment for their intelligence growth
C. the age of 12 is a critical point in time for intellectual development in children
D. intellectual development and academic achievement of children are closely related
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A.主动交代本人应当受到处分的违法违纪行为的
B.配合调查，如实说明本人违法违纪事实的
C.检举他人违法违纪行为，经查证属实的
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B. 脑脊液中糖及氯化物下降
C. 脑脊液中蛋白质含量增加
D. 颅压高,脑脊液呈毛玻璃样
E. 脑脊液中细胞数增多,以淋巴细胞增多为主
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A. 头低脚高位
B. 头高脚低位
C. 侧卧位
D. 俯卧位
E. 平卧位
