下列离子方程式表达正确的是（　　）

A．用惰性电极电解氯化镁溶液：2Cl^-+2H₂O

B．将氯化亚铁溶液和稀硝酸混合：3Fe²⁺+NO₃^-+4H⁺=3Fe³⁺+NO↑+2H₂O

C．碳酸氢铵溶液与足量氢氧化钠溶液反应：NH₄⁺+OH^-=NH₃•H₂O

D．NaAlO₂溶液中通入过量CO₂：2AlO₂^-+CO₂+3H₂O═2Al（OH）₃↓+CO₃^2-

The newly-discovered star was named _____a Chinese astronomer _____ honor of his contributions to astronomy.

A．for; in

B．after; for

C．as; in

D．after; in