问题
填空题
一般混凝土由（）四种成分组成。
答案
参考答案：水泥、砂、石子、水
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一般混凝土由（）四种成分组成。
参考答案：水泥、砂、石子、水
| 情景对话。 | |
| ( )1. Have we got any juice? ( )2. Would you like to go to piano lesson? ( )3. What's your favourite sport? ( )4. What's on at the cinema? ( )5. When is the football match? | A. That's a great idea. B. It's on Monday. C. Yes, we've got some juice, but we haven't got any milk. D. Mmm, it's football E. It's a Jackie Chan film. |