煤炭资源量估算指标中最高硫分St，d指标为（）。
参考答案：3%
表皮细胞分为（）和（）2大类。
根据汉语意思填写句子。
1. —Where is John's seat? —It's ______(紧挨着) Mike's.
2. There is a tall tree ______(在前面) the house.
3. Give me ______ (一份) newspaper.
4. That child was born in ______ (狗年).
5. I have a pen in ______ (以……形状) a rabbit.
