计算:3000+400=
3400
根据句意及首字母提示完成下列单词。
1. She is a reporter, and she works for a m____.
2. S is the hottest season of the year.
3. She is ill and has to be in h
4. I t____Chinese in a school.I am a teacher.
5. Can you p football with me this afternoon?
简述现代农业的基本类型及其分布。