机动车仪表板上（如图所示）这个符号表示什么？（）
A．冷风暖气风扇
B．空调制冷
C．空气循环
D．雪地起步模式
参考答案：A
由抛物线y2=x和直线x=1所围成图形的面积为______．
根据句意及首字母提示补全单词.
1. There is n_______ on the desk, but I saw my pen just now.
2. Would you m_______ helping me with my maths ?
3. He a_______ to join us next week.
4. I'd like some w_______ to drink.
5. He g_______ me some cakes yesterday.
