古法金的纯度在50%左右，纯度不是很高。古法金就是使用古法提炼出来的黄金，在纯度上比较差一些，毕竟以前的工艺技术赶不上现在的高科技。
I have a DataInputStream that I obtained from a Socket. Is there any way I can set a timeout for dis.read(...)? Currently I spawn a new thread to do the read. While the parent thread does a thread.joi
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