A.短信; B.10086客服系統(tǒng); C.網(wǎng)上營業(yè)廳; D.掌上營業(yè)廳;
A.“廣域覆蓋”; B.“永遠(yuǎn)在線”; C.“豐儉由己”; D.“繳費(fèi)方便”;
A.170.2kbps; B.171.2kbps; C.171kbps; D.170.8kbps;