下列实验装置不能达到实验目的的是
装置A 装置B 装置C 装置D
| A．用装置A来做SO2的喷泉实验 | B．用装置B来验证Cu与浓硝酸反应的热量变化 |
| C．用装置C来验证NH3极易溶于水 | D．用装置D来比较Na2CO3与NaHCO3的稳定性 |
相关试题
—— Do you mind my opening the window? It’s a bit hot in here.
—— ______ , as a matter of fact
| A．Go ahead | B．Yes, my pleasure |
C．Yes, I do | D．Come on |
It’s high time you had your hair cut ; it’s getting _______ . 
| A．too much long | B．much too long |
C．long too much | D．too long much |
My friend showed me round the town, ______ was very kind of him. 
| A．which | B．that | C．where | D．it |
They use computers to keep the traffic _______ smoothly.
| A．being run | B．run | C．to run | D．running |
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