将pH=1的盐酸平均分成两份，一份加适量水，另一份加入与该盐酸物质的量浓度相同的适量NaOH溶液后（设混合后溶液体积的微小变化忽略不计），pH都升高了1，则加入的水与NaOH溶液的体积比为（ ）
| A．9:1 | B．10:1 | C．11:1 | D．12:1 |
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 |
粤公网安备 44130202000953号