A、<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 华文宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: ">源即接收流量也发出流量</span>
B、<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 华文宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: ">汇即接收流量也发出流量</span>
C、<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 华文宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: ">中间点即接收流量也发出流量</span>
D、<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 华文宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: ">以上说法都不正确</span>
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