The method 11, wherein a connection is opened if the server response time is slower than {HEAD ~ the predetermined range} of {TAIL ~ times} 
of
The method 11 , wherein a connection is opened if the server response time is slower than { HEAD ~ the predetermined range } of { TAIL ~ times }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL