根据如图分析回答.
(1)a分子的结构通式可表示为____ .
(2)请在A下面的括号填写该类物质的另外三种功能.____
(3)A类物质有多种不同功能,从a角度分析原因有____
读某地等温线图,回答以下问题。
A:Look! This is the flag of ____. Do you know?
B:Yes, I ____ about it. It has five yellow stars.
A:What is the capital ____ of China?
B:It's Beijing. Tian'anmen Square is in Beijing. It's ____ .
A:What do you ____ ?
B:Chinese.
A:Great!
我给词语化化妆。
____的尘土 ____地问 ____的神气
____地回答 ____的场地 ____地说