18.下列各組溶液,哪幾組經適當混合後可以當作緩衝溶液?
A. CH 3 COOH+CH 3 COONa
B. CH 3 COOH+NaOH
C. CH 3 COOH+HCl
D. CH 3 COONa+NaOH
E. CH 3 COONa+HCl
(A)僅ACD
(B)僅BCD
(C)僅BDE
(D)僅ABE
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統計: A(16), B(17), C(16), D(250), E(0) #2797639
統計: A(16), B(17), C(16), D(250), E(0) #2797639