A：落在物体上的灰尘
B：霉菌的孢子
C：霉菌的种子
D：细菌的芽孢
When I passed this afternoon, I saw a little boy was lying on the grass, his hands _____ under his head.
⑴____ A. young B. tall C. old
⑵____ A. small B. big C. than
⑶____ A. meter B. hall C. short
⑷____ A. me B. you C. him
⑸____ A. long B. taller C. older
“鱼米之乡”和“天府之国”分别指的是（ ）
