下列实验，不能说明乙酸是弱电解质的是
| A．常温时，测得乙酸钠溶液的pH＞7 |
| B．常温时，测得0.1 mol·L-1乙酸溶液的pH约为3 |
| C．乙酸溶液与大理石反应产生气泡 |
| D．相同温度下，测得同物质的量浓度的乙酸溶液的导电性比盐酸溶液弱 |
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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