【单选题】下列电离方程式书写正确的是( )
A.
NaHSO 4 =Na + +H + +SO (熔融态)
B.
NaHCO 3 =Na + +H + +CO
C.
CH 3 COOH CH 3 COO - +H +
【单选题】She still remembers the days ______ she spent in the countryside.
【简答题】When my period came, my mother told me “our women's motto was to ________”.
【单选题】下列电离方程式书写正确的是 [ ]
A.
NaHSO 4 =Na + +H + +SO 4 2- (熔融态)
B.
NaHCO 3 =Na + +H + +CO 3 2-
C.
CH 3 COOH CH 3 COO - +H +
D.
H 2 CO 3 2H + +CO 3 2-
【判断题】She still remembers the day when did she meet my brother in Paris.
【简答题】When my mother told stories to me,she always looked me with a smile.
【简答题】She still remembers the year _______ she spent in Sydney.
【多选题】下列电离方程式书写正确的是 [ ]
A.
NaHSO 4 =Na + +H + +SO 4 2-
B.
NaHCO 3 =Na + +H + +CO 3 2-
C.
CH 3 COOH CH 3 COO - +H +
D.
H 2 CO 3 2H + +CO 3 2-