下列哪些属于输血后发热反应的可能原因
A．溶血
B．受血者有过敏体质
C．免疫反应
D．致热原污染
参考答案：A,C,D
用be或have的正确形式填空。
1. I _____ a brother.
2. My father _____ a watch.
3. He _____ an eraser.
4. _____ you____ a soccer ball?
5. _____ she _____ a ring?
6. They _____ a computer.
7. He doesn't ____ a ruler.
8. The boys____a tennis.
9. _____ she your English teacher?
10. There____ a pen and some books on the desk.
11. Jane____many good friends.
12. Jane and Lucy _____ good friends?
农信通共有（）个子栏目。
A、30
B、65
C、95
D、121
