化合物A的结构简式为
，已知在一定温度和相同浓度的稀溶液中，下列物质的电离程度有如下顺序：R-COOH＞H2CO3＞H2S＞
＞HCO3-＞HS-，试问A跟下列哪些物质的溶液反应可得化学式为C7H5O3Na的盐
①NaOH ②Na2S ③NaHCO3 ④NaHS ⑤Na2CO3
| A．③和④ | B．①和② | C．①②③⑤ | D．只有① |
相关试题
I’m sure that your letter will get______ attention. They know you’re waiting for the reply. 
| A．continued | B．immediate | C．careful | D．general |
All the dishes in this menu, ______ otherwise stated, will serve two to three people. 
| A．as | B．if | C．though | D．unless |
The children loved their day trip, and they enjoyed the horse ride ______.
| A．most | B．more | C．less | D．little |
Progress______ so far very good and we are sure that the work will be finished on time.
| A．was | B．had been | C．has been | D．will be |
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