下列离子方程式书写错误的是

A．向足量的NaHCO₃溶液中逐渐滴入澄清石灰水：Ca²⁺+2OH^—+2HCO₃^- =2H₂O+CaCO₃↓+ CO₃^2-

B．向足量的NaHSO₄溶液中逐渐滴入Ba(HCO₃)₂溶液：Ba²⁺+2H⁺+2HCO₃^-+ SO₄^2-=2H₂O+BaSO₄↓+2 CO₂↑

C．向饱和Na₂CO₃溶液中通入足量的CO₂：CO₃^2-+ CO₂+ H₂O="2" HCO₃^-

D．向NaHSO₄溶液中逐渐滴入Ba(OH)₂溶液至沉淀完全：H⁺+ SO₄^2-+ Ba²⁺+ OH^—= BaSO₄↓+ H₂O

It was Mother’s day .A man stopped his car at a flower shop to order some flowers which were supposed to be s_________小题1: by the salesman to his mother, ________小题2:lived two hundred miles away . When he got out ______ 小题3:his car ,he found a girl sitting on the roadside crying . He ____________(挥手) 小题4: to her and asked her what was wrong and she said she didn’t have e___________ 小题5:money to buy her mother a rose . The man decided to help buy the girl a rose .And _________ 小题6:offered to give the girl a _________(搭车) 小题7:home .But she asked to take her to her mother’s grave(坟墓). The man was _________ 小题8:moved that he returned to the shop , picked up the flowers he wanted , a_______小题9:drove two hundred miles to his mother’s house ,feeling _______（放松）小题10:.