下列物质按强电解质、弱电解质、非电解质、既不是电解质也不是非电解质顺序排列的是（ ）
| A．CaCO3、氨水、NH3、Cl2 | B．H2CO3、NaHCO3、CH3CH2OH、盐酸 |
| C．Ba(OH)2、HF、CO2、Zn | D．HCl、冰醋酸、NaO、NaCl溶液 |
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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