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【单选题】
下列关于Socket类的描述中,错误的是( )
A.
Socket类中定义的getInputStream()方法用于返回Socket的输入流对象。
B.
Socket类中定义的getOutputStream()方法用于返回Socket的输出流对象。
C.
Socket类中定义的getLocalAddress()方法用于获取Socket对象绑定的本地IP地址。
D.
Socket类中定义的close()方法用于关闭输入\\输出流对象。
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【单选题】What does ROI measure?
A.
Investment potential.
B.
Profit margins.
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Loss ratio.
D.
The net profit or loss of an investment, expressed as a percentage
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