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【单选题】
以下C#语言书写规则正确是()?A.
private void button1_Click(object sender, EventArgs e) { this.Close();}
B.
private void button1_Click(object sender, EventArgs e) { this.Close()}
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【简答题】The British are not so familiar with different cultures and other ways of doing things, ________ is often the case in other countries. A) as B) what C) so D) that