检测节点
| 区域/运营商 | 响应最快 | 响应最慢 | 平均响应 |
|---|---|---|---|
| 全部 | -6.614ms | -68.109ms | 34.852ms |
| 电信 | 江西南昌电信15.038ms | -68.109ms | 40.999ms |
| 移动 | 安徽安庆移动17.817ms | 云南保山移动50.797ms | 39.482ms |
| 联通 | -6.614ms | -42.03ms | 26.816ms |
| 华东 | -6.614ms | -24.314ms | 17.643ms |
| 华北 | -21.826ms | -36.344ms | 31.387ms |
| 华南 | 广东中山电信30.208ms | -47.705ms | 37.123ms |
| 华中 | 目标响应超时 | ||
| 西北 | -42.03ms | -68.109ms | 54.401ms |
| 西南 | -35.529ms | 云南保山移动50.797ms | 43.163ms |
| 东北 | 辽宁盘锦联通36.774ms | 黑龙江大庆电信55.839ms | 47.049ms |
|
检测点
运营商
检测节点
|
解析IP | 丢包率 |
最大时间 |
最小时间 |
平均时间 |
操作 |
|---|---|---|---|---|---|---|
|
电信
内蒙古
|
202.91.238.44 (浙江杭州联通) | 0% | 36.964 ms | 35.921 ms | 36.344 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44): 56 data bytes 64 bytes from 202.91.238.44: seq=0 ttl=115 time=36.964 ms 64 bytes from 202.91.238.44: seq=1 ttl=115 time=35.985 ms 64 bytes from 202.91.238.44: seq=2 ttl=115 time=36.033 ms 64 bytes from 202.91.238.44: seq=3 ttl=115 time=36.820 ms 64 bytes from 202.91.238.44: seq=4 ttl=115 time=35.921 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 35.921/36.344/36.964 ms |
|
电信
新疆
|
202.91.238.44 (浙江杭州联通) | 0% | 68.93 ms | 67.828 ms | 68.109 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44): 56 data bytes 64 bytes from 202.91.238.44: seq=0 ttl=112 time=67.828 ms 64 bytes from 202.91.238.44: seq=1 ttl=112 time=67.941 ms 64 bytes from 202.91.238.44: seq=2 ttl=112 time=67.854 ms 64 bytes from 202.91.238.44: seq=3 ttl=112 time=68.930 ms 64 bytes from 202.91.238.44: seq=4 ttl=112 time=67.995 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 67.828/68.109/68.930 ms |
|
电信
海南
|
103.60.223.120 (香港香港STAR FAX GROUP PTE LTD) | 100% | * ms | * ms | * ms |
发送:5 接收:0 包大小:64 详情:
PING mc-rd.com (103.60.223.120): 56 data bytes --- mc-rd.com ping statistics --- 5 packets transmitted, 0 packets received, 100% packet loss |
|
电信
河南
|
103.60.223.120 (香港香港STAR FAX GROUP PTE LTD) | 100% | * ms | * ms | * ms |
发送:5 接收:0 包大小:64 详情:
PING mc-rd.com (103.60.223.120): 56 data bytes --- mc-rd.com ping statistics --- 5 packets transmitted, 0 packets received, 100% packet loss |
|
电信
安徽安庆
|
202.91.238.44 (浙江杭州联通) | 0% | 21.998 ms | 17.917 ms | 18.913 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=113 time=17.917 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=113 time=18.307 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=113 time=21.998 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=113 time=18.318 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=113 time=18.025 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4118ms rtt min/avg/max/mdev = 17.917/18.913/21.998/1.550 ms |
|
电信
福建厦门
|
103.60.223.120 (香港香港STAR FAX GROUP PTE LTD) | 100% | * ms | * ms | * ms |
发送:5 接收:0 包大小:64 详情:
PING mc-rd.com (103.60.223.120): 56 data bytes --- mc-rd.com ping statistics --- 5 packets transmitted, 0 packets received, 100% packet loss |
|
电信
甘肃庆阳
|
202.91.238.44 (浙江杭州联通) | 0% | 53.316 ms | 52.753 ms | 53.064 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=114 time=53.103 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=114 time=52.753 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=114 time=53.137 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=114 time=53.010 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=114 time=53.316 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4131ms rtt min/avg/max/mdev = 52.753/53.064/53.316/0.184 ms |
|
电信
广东中山
|
202.91.238.44 (浙江杭州联通) | 0% | 30.439 ms | 29.975 ms | 30.208 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=113 time=30.439 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=113 time=29.975 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=113 time=30.068 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=113 time=30.205 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=113 time=30.351 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4068ms rtt min/avg/max/mdev = 29.975/30.208/30.439/0.172 ms |
|
电信
黑龙江大庆
|
202.91.238.44 (浙江杭州联通) | 0% | 56.033 ms | 55.707 ms | 55.839 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=115 time=55.848 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=115 time=55.707 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=115 time=55.832 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=115 time=55.774 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=115 time=56.033 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4114ms rtt min/avg/max/mdev = 55.707/55.839/56.033/0.109 ms |
|
电信
吉林长春
|
202.91.238.44 (浙江杭州联通) | 0% | 50.758 ms | 50.281 ms | 50.479 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=114 time=50.644 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=114 time=50.758 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=114 time=50.379 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=114 time=50.281 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=114 time=50.333 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4153ms rtt min/avg/max/mdev = 50.281/50.479/50.758/0.187 ms |
|
电信
江西南昌
|
202.91.238.44 (浙江杭州联通) | 0% | 15.493 ms | 14.733 ms | 15.038 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=114 time=15.493 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=114 time=14.915 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=114 time=14.733 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=114 time=15.231 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=114 time=14.817 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4074ms rtt min/avg/max/mdev = 14.733/15.038/15.493/0.283 ms |
|
移动
内蒙古
|
103.60.223.120 (香港香港STAR FAX GROUP PTE LTD) | 100% | * ms | * ms | * ms |
发送:5 接收:0 包大小:64 详情:
PING mc-rd.com (103.60.223.120): 56 data bytes --- mc-rd.com ping statistics --- 5 packets transmitted, 0 packets received, 100% packet loss |
|
移动
海南
|
202.91.238.44 (浙江杭州联通) | 0% | 47.863 ms | 47.606 ms | 47.705 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44): 56 data bytes 64 bytes from 202.91.238.44: seq=0 ttl=114 time=47.760 ms 64 bytes from 202.91.238.44: seq=1 ttl=114 time=47.660 ms 64 bytes from 202.91.238.44: seq=2 ttl=114 time=47.863 ms 64 bytes from 202.91.238.44: seq=3 ttl=114 time=47.637 ms 64 bytes from 202.91.238.44: seq=4 ttl=114 time=47.606 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 47.606/47.705/47.863 ms |
|
移动
辽宁
|
103.60.223.120 (香港香港STAR FAX GROUP PTE LTD) | 100% | * ms | * ms | * ms |
发送:5 接收:0 包大小:64 详情:
PING mc-rd.com (103.60.223.120): 56 data bytes --- mc-rd.com ping statistics --- 5 packets transmitted, 0 packets received, 100% packet loss |
|
移动
陕西
|
103.60.223.120 (香港香港STAR FAX GROUP PTE LTD) | 100% | * ms | * ms | * ms |
发送:5 接收:0 包大小:64 详情:
PING mc-rd.com (103.60.223.120): 56 data bytes --- mc-rd.com ping statistics --- 5 packets transmitted, 0 packets received, 100% packet loss |
|
移动
北京
|
103.60.223.120 (香港香港STAR FAX GROUP PTE LTD) | 100% | * ms | * ms | * ms |
发送:5 接收:0 包大小:64 详情:
PING mc-rd.com (103.60.223.120): 56 data bytes --- mc-rd.com ping statistics --- 5 packets transmitted, 0 packets received, 100% packet loss |
|
移动
安徽安庆
|
202.91.238.44 (浙江杭州联通) | 0% | 18.287 ms | 17.007 ms | 17.817 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=115 time=17.007 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=115 time=18.269 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=115 time=18.287 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=115 time=17.415 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=115 time=18.108 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4082ms rtt min/avg/max/mdev = 17.007/17.817/18.287/0.515 ms |
|
移动
吉林长春
|
202.91.238.44 (浙江杭州联通) | 0% | 51.159 ms | 43.289 ms | 45.102 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=115 time=44.052 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=115 time=51.159 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=115 time=43.289 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=115 time=43.565 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=115 time=43.445 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4080ms rtt min/avg/max/mdev = 43.289/45.102/51.159/3.039 ms |
|
移动
天津
|
202.91.238.44 (浙江杭州联通) | 0% | 36.38 ms | 35.833 ms | 35.991 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=114 time=36.380 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=114 time=36.006 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=114 time=35.833 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=114 time=35.894 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=114 time=35.842 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4109ms rtt min/avg/max/mdev = 35.833/35.991/36.380/0.204 ms |
|
移动
云南保山
|
202.91.238.44 (浙江杭州联通) | 0% | 51.124 ms | 50.556 ms | 50.797 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=114 time=51.124 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=114 time=50.668 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=114 time=50.806 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=114 time=50.831 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=114 time=50.556 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4124ms rtt min/avg/max/mdev = 50.556/50.797/51.124/0.191 ms |
|
联通
天津
|
202.91.238.44 (浙江杭州联通) | 0% | 22.325 ms | 21.431 ms | 21.826 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44): 56 data bytes 64 bytes from 202.91.238.44: seq=0 ttl=118 time=21.557 ms 64 bytes from 202.91.238.44: seq=1 ttl=118 time=21.952 ms 64 bytes from 202.91.238.44: seq=2 ttl=118 time=21.431 ms 64 bytes from 202.91.238.44: seq=3 ttl=118 time=22.325 ms 64 bytes from 202.91.238.44: seq=4 ttl=118 time=21.865 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 21.431/21.826/22.325 ms |
|
联通
福建
|
202.91.238.44 (浙江杭州联通) | 0% | 24.848 ms | 22.105 ms | 22.826 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44): 56 data bytes 64 bytes from 202.91.238.44: seq=0 ttl=118 time=22.202 ms 64 bytes from 202.91.238.44: seq=1 ttl=118 time=22.864 ms 64 bytes from 202.91.238.44: seq=2 ttl=118 time=22.105 ms 64 bytes from 202.91.238.44: seq=3 ttl=118 time=24.848 ms 64 bytes from 202.91.238.44: seq=4 ttl=118 time=22.114 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 22.105/22.826/24.848 ms |
|
联通
江西
|
202.91.238.44 (浙江杭州联通) | 0% | 29.092 ms | 21.033 ms | 24.314 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44): 56 data bytes 64 bytes from 202.91.238.44: seq=0 ttl=115 time=21.749 ms 64 bytes from 202.91.238.44: seq=1 ttl=115 time=27.280 ms 64 bytes from 202.91.238.44: seq=2 ttl=115 time=22.416 ms 64 bytes from 202.91.238.44: seq=3 ttl=115 time=29.092 ms 64 bytes from 202.91.238.44: seq=4 ttl=115 time=21.033 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 21.033/24.314/29.092 ms |
|
联通
浙江
|
202.91.238.44 (浙江杭州联通) | 0% | 6.757 ms | 6.528 ms | 6.614 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44): 56 data bytes 64 bytes from 202.91.238.44: seq=0 ttl=121 time=6.621 ms 64 bytes from 202.91.238.44: seq=1 ttl=121 time=6.757 ms 64 bytes from 202.91.238.44: seq=2 ttl=121 time=6.571 ms 64 bytes from 202.91.238.44: seq=3 ttl=121 time=6.528 ms 64 bytes from 202.91.238.44: seq=4 ttl=121 time=6.596 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 6.528/6.614/6.757 ms |
|
联通
陕西
|
202.91.238.44 (浙江杭州联通) | 0% | 55.073 ms | 35.586 ms | 42.03 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44): 56 data bytes 64 bytes from 202.91.238.44: seq=0 ttl=116 time=44.290 ms 64 bytes from 202.91.238.44: seq=1 ttl=116 time=55.073 ms 64 bytes from 202.91.238.44: seq=2 ttl=116 time=38.921 ms 64 bytes from 202.91.238.44: seq=3 ttl=116 time=35.586 ms 64 bytes from 202.91.238.44: seq=4 ttl=116 time=36.283 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 35.586/42.030/55.073 ms |
|
联通
广西
|
103.60.223.120 (香港香港STAR FAX GROUP PTE LTD) | 100% | * ms | * ms | * ms |
发送:5 接收:0 包大小:64 详情:
PING mc-rd.com (103.60.223.120): 56 data bytes --- mc-rd.com ping statistics --- 5 packets transmitted, 0 packets received, 100% packet loss |
|
联通
重庆
|
202.91.238.44 (浙江杭州联通) | 0% | 36.082 ms | 34.726 ms | 35.529 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44): 56 data bytes 64 bytes from 202.91.238.44: seq=0 ttl=118 time=35.049 ms 64 bytes from 202.91.238.44: seq=1 ttl=118 time=35.843 ms 64 bytes from 202.91.238.44: seq=2 ttl=118 time=36.082 ms 64 bytes from 202.91.238.44: seq=3 ttl=118 time=34.726 ms 64 bytes from 202.91.238.44: seq=4 ttl=118 time=35.945 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 34.726/35.529/36.082 ms |
|
联通
安徽亳州
|
202.91.238.44 (浙江杭州联通) | 0% | 18.115 ms | 17.824 ms | 17.978 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=118 time=17.940 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=118 time=18.011 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=118 time=17.824 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=118 time=18.115 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=118 time=18.000 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4115ms rtt min/avg/max/mdev = 17.824/17.978/18.115/0.095 ms |
|
联通
广东东莞
|
202.91.238.44 (浙江杭州联通) | 0% | 33.566 ms | 33.342 ms | 33.455 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=118 time=33.566 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=118 time=33.483 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=118 time=33.524 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=118 time=33.360 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=118 time=33.342 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4083ms rtt min/avg/max/mdev = 33.342/33.455/33.566/0.088 ms |
|
联通
辽宁盘锦
|
202.91.238.44 (浙江杭州联通) | 0% | 37.341 ms | 36.374 ms | 36.774 ms |
发送:5 接收:5 包大小:64 详情:
PING mc-rd.com (202.91.238.44) 56(84) bytes of data. 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=1 ttl=117 time=37.341 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=2 ttl=117 time=36.542 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=3 ttl=117 time=36.609 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=4 ttl=117 time=36.374 ms 64 bytes from mc-rd.com (202.91.238.44): icmp_seq=5 ttl=117 time=37.004 ms --- mc-rd.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4131ms rtt min/avg/max/mdev = 36.374/36.774/37.341/0.350 ms |
查询结果仅供参考,不保证100%准确。
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