下列溶液中物质的量浓度为l mol/L的是
| A．将40 g NaOH固体溶解于1 L水中 |
| B．将22.4 L氯化氢气体溶于水配成l L溶液 |
| C．将l L 10 mol/L的浓盐酸与9 L水混合 |
| D．10 g NaOH固体溶解在水中配成250 mL溶液 |
相关试题
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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| A．as a result of | B．on top of | C．in front of | D．in need of |
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