工业合成氨的反应是放热过程,随着瞬时转化率的增加,最适宜温度是降低的。
参考答案:对
填入适当的词。
1. There a new chair and two sofas.
2. There some cakes and some rice.
3. Today is my mother's birthday .It's a birthday gift my mother.
4. It's time get up.
5. It's time dinner.
6. you like PE?
7. It's time for English. Take your English book.
8. We do everything English.
9. They art and music.
10. What do we have breakfast?
初步判断是否食物中毒,主要根据现场
A.卫生学调查资料
B.可疑食物调查资料
C.流行病学调查资料
D.病人自述的调查
E.潜伏期的调查资料