the answer is d.
In the progress of the 2nd install, the new DLL will register it and overwrite the old entry in registry. So the old install's information is lost, can not be used anymore.
In the progress of the 2nd install, the new DLL will register it and overwrite the old entry in registry. So the old install's information is lost, can not be used anymore.
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货