阅读下列短文，然后根据短文的內容從每小题的四个选项中选出可填入相应空白处的最佳选择，并把它前面的大写字母填入左边括号里。AGrandma Moses is among the most famous twentieth-century painters of the United States，yet she had only just begun painting in her late seventies．As she once said of herself：“I would never sit back in a rocking-chair，waiting for someone to help me．”She was born on a farm in New York State．At twelve she left home and was in a service until at twenty-seven，she married Thomas Moses，the tenant of hers．They farmed most of their lives．She had ten children，of whom five survived；her husband died in 1928．Grandma Moses painted a little as a child and made embroidery pictures as a hobby，but only changed to oils in old age because her hands had become too stiff to sew and she wanted to keep busy and pass the time．Her pictures were first sold at an exhibition，and were soon noticed by a businessman who bought everything she painteD．Three of the pictures were shown in the Museum of Modern Art，and in 1940 she had her first exhibition in New York．Between the 1930‘s and her death she produced some 2，000 pictures：careful and lively pictures of the country life she had known，with a wonderful sense of color and form．Grandma Moses began to paint because she wanted to_______．
A、 make her home beautifulB、 keep activeC、 improve her salaryD、 gain an international fame
相关标签： 大写字母
请完成下列Java程序：对大写的26个英文字母加密，从键盘输入一个大写字母串，输出这个串加密后的结果。加密操作是将字母变换成倒序的大写字母，如A-＞Z，B-＞Y。
注意：请勿改动main()主方法和其他已有语句内容，仅在下划线处填入适当的语句。
程序运行结果如下：
输入一个大写字母串：ADFSDFFE
加密后的大写字母串：ZWUHWUUV
import java.io.*;
public class ex12_2{
public static void main (String[] args){
char ch = 'A';
String str;
System. out .print ( "输入一个大写字母串: ");
try{
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
str= in.readLine();
System. out .print ( "加密后的大写字母串:");
for(int i=0;i＜str.length();i++){
_______________;
_______________;
System.out.print(ch);
}
}catch(IOException e){}
try{
System.in.read();
}catch(IOException e) {};
}
}