A.醫(yī)院網(wǎng)上預(yù)約掛號(hào)服務(wù) B.網(wǎng)銀服務(wù) C.網(wǎng)絡(luò)教育服務(wù) D.網(wǎng)上訂票服務(wù)
A.1 B.2 C.3 D.4
A.5%-10% B.10%-15% C.15%-20% D.1%-5%