在高合金钢组织中，常有哪五种组织相存在？
参考答案：
常有的五种组织是铁素体、奥氏体、珠光体、马氏体和莱氏体。
为什么说梁启超是中国史学史的奠基人？
句型转换。
根据要求，变换下列各句。
1. Jim is more athletic than any other student in his class. (改为同义句)
Jim is the _______ athletic _______ all the students in his class.
2. Li Hong was born on June third , 1993. (对画线部分提问)
_______ _______ Li Hong born ?
3. Gina has lunch at school (用next week 改写句子)
Gina _______ _______ _______ _______ lunch at school next week.
4. I met my English teacher on the way to school.(改为一般疑问句).
_______ you _______ your English teacher on the way to school?
5. It's 10 minutes' walk from school.(对画线部分提问)
_______ _______ is it from school?
