问题
选择题
| — ______ advice did you take? — Sally's. I quite agreed with what she suggested |
A.What B.Whose C.Where D.Which |
答案
答案：B
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| — ______ advice did you take? — Sally's. I quite agreed with what she suggested |
A.What B.Whose C.Where D.Which |
答案：B
如下图所示装置中，胶头滴管中吸入甲液体，平底烧瓶中充入(或放入)乙物质，挤压胶头滴管，一段时间后装置中的气球明显胀大。则甲乙两种物质可能是
| 甲 | 乙 | |
| A | 稀硫酸 | 铜片 |
| B | 双氧水 | MnO2 |
| C | 稀盐酸 | 锌粉 |
| D | NaOH溶液 | CO2 |