题目内容
在窗体中添加一个名称为Commandl的命令按钮，然后编写如下程序： Public x As Integer Private Sub Commandl_click() x＝10 Call s 1 Call s 2 MsgBOx x End Sub Pfivate Sub s1() x＝x+20 End Sub Private Sub
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听力原文： Born Cassius Clay in Louisville, Kentucky, in 1942, Muhammad Ali retired from boxing in 1980. As an amateur, he won 100 of 108 fights. Later, as a professional boxer, Ali was trained by Angelo Dundee, who pushed him on to face champion boxer Sonny Liston in 1964; in this exciting match, Liston was unable to continue the fight after the sixth round.
After winning the championship fight against Liston, Ali announced that he had joined the Black Muslim religion. At the time, the Vietnam War was in progress. When Ali claimed to be a conscientious objector to the war, based on religious grounds, he was denied exemption from military service. Refusing to be inducted into the U. S. Army, he was stripped of his right to box and was given a five-year prison sentence, a conviction that was reversed three years later. Once again able to enter the ring, Muhammad Ali became the first man to win the world' s heavy weight boxing title three times.
According to the lecture, what was the result of Ali's 1964 fight against Sonny Liston？
What is the main idea of this passage？
在窗体中有一个标签Labele，标题为“测试进行中”：有一个命令按钮Commandl，事件代码如下：
Private Sub Commandl_Click()
Labele.Caption＝“标签”
End Sub
Private Sub Form_Load()
Form.Caption＝“举例”
Commandl.Caption＝“移动”
End Sub
打开窗体后，单击命令按钮，屏幕显示()。
听力原文： When you take a walk in any of the cities in the West, you often see a lot of people walking dogs. It is still true that a dog is the most useful and faithful animal in the world, but the reasons why people keep a dog have changed. In the old days people used to train dogs to protect themselves against attacks by other beasts. And later they came to realize that a dog was not only useful for protection but was also willing to obey his master. For example, when people used dogs for hunting, the dogs would not eat what was caught without permission. But in modern times people in the city need not protect themselves against attacks of animals. Why do they keep dogs, then？ Some people keep dogs to protect themselves from robbery. But the most important reason is for companionship. For a child, a dog is his best friend when he has no friends to play with. For young couples, a dog is their child when they have no children. For old couples, a dog is also their child when their real children have grown up. So the main reason why people keep dogs has changed from protection to friendship.
According to the passage, what were dogs trained for in the past？
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