从根本上说，生物质能来源于（），是取之不尽的可再生能源和最有希望的“绿色能源”。
参考答案：太阳能
根据句子意思及首字母提示完成单词。
1. Candy is her favourite food, but it isn't h _____ food.
2. Daming can play table tennis but he can't play the p_____.
3. My parents live in Beijing. I often s_____ emails to them.
4. Tom usually plays basketball but he n_____ plays computer games.
5. We can download music from the I_____.
下列四幅图，分别表示近视眼成像情况和矫正做法的是
A．②①
B．③①
C．②④
D．③④
