将过量的CO2分别通入① Na2SiO3溶液; ②CaCl2溶液 ③Ca(ClO)2溶液 ④饱和Na
2CO3 溶液,最终溶液中有白色沉淀析出得是
| A．①②③④ | B．①④ | C．①②③ | D．②③ |
相关试题
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 |
Charles was alone at home, with_______ looking after him.
| A．someone | B．anyone | C．not one | D．no one |
It is often ______ that human beings are naturally equipped to speak.
| A．said | B．to say | C．saying | D．being said |
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