【单选题】【消耗次数：1】
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1
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4．使用Thread子类创建线程的优点是可以在子类中增加新的成员变量，使线程具有某种属性，也可以在子类中新增加方法，使线程具有某种功能。但是，Java不支持多继承，Thread类的子类不能再扩展其他的类。（ ）
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正确
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错误