鉴别消化性溃疡和慢性胃炎最好的方法是（）。
A.大便隐血试验
B.胃黏膜脱落细胞检查
C.X线钡餐检查
D.胃液分析
E.胃镜检查
参考答案：E
股东大会就发行证券事项作出决议，必须经出席会议的股东所持表决权的2/3以上通过。（）
句型转换。
1. He likes art because it's fun. (对划线部分提问)
_____ does he_____ art?
2. My math teacher is Mr Green. (对划线部分提问)
_____ _____ your math teacher?
3. Erice likes some subjects. (改为一般疑问句)
_____ Erice_____ _____ subjects?
4. She usually goes to bed at eleven thirty. (改为复数句)
_____ usually _____ to bed at eleven thirty.
5. What food do you like best? (同义句改写)
_____ your _____ food?
