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简述寡污带的特点。

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Public class test ( Public static void stringReplace (String text) ( Text = text.replace (‘j’ , ‘i’); ) public static void bufferReplace (StringBuffer text) ( text = text.append (“C”) ) public static void main (String args[]} ( String textString = new String (“java”); StringBuffer text BufferString = new StringBuffer (“java”); stringReplace (textString); bufferReplace (textBuffer); System.out.printLn (textString + textBuffer); ) ) What is the output?()

我国各民族的集聚特点是小杂居,大聚居。

A. 正确
B. 错误

If DB2 detects a deadlock between application A and application B (each waiting for a lock held by the other one), what action will DB2 take?()

A. Rollback the transaction in both applications.
B. Rollback the transaction in one of the two applications.
C. Decrease the lock timeout value for both applications, thereby causing a lock timeout situation.
D. Send a message to let the administrator know of the situation and decide which application or applications should be terminated.

红色许可证的通知书,应采取最快的方法传送,优先方向车站如无开往区间的列车时,在确认区间空闲后,可使用()传送。

A. 不挂车的单机
B. 动车
C. 重型轨道车
D. 挂车的单机

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