下列离子方程式正确的是（　　）

A．向氢氧化钠溶液中通入过量二氧化硫：SO₂+OH^-═HSO₃^-

B．AgNO₃溶液中滴入少量的H₂S溶液2Ag⁺+S^2-→Ag₂S↓

C．向碳酸氢钙溶液中加入过量的醋酸：Ca（HCO₃）₂+2CH₃COOH=Ca²⁺+2CH₃COO^-+2CO₂↑+2H₂O

D．过量CO₂通入Ca（ClO）₂溶液中ClO^-+CO₂+H₂O→HCO₃^-+HClO

It seems（）that no one saw this crisis.

A.incredible

B.uncredible

C.incredable

D.uncredable