某酸溶液的pH=3,则该酸溶液的物质的量浓度为( )
| A．一定大于0.001 mol·L-1 |
| B．一定等于0.001 mol·L-1 |
| C．一定小于0.001 mol·L-1 |
| D．以上说法均欠妥 |
相关试题
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 |
If you leave the club, you will not be_____back in .
| A．received | B．admitted | C．turned | D．moved |
What I need is_____ book that contains ______ABC of oil painting.
| A．a; 不填 | B．the; 不填 | C．the; an | D．a ; the |
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