病原体进入人体后是否引起疾病,主要取决于
A.病原体的数量
B.病原体的毒力
C.病原体的变异性
D.病原体的特异性定位
E.病原体的致病能力和机体的免疫力
参考答案:E
根据句意及首字母填空。
1. Miss Wang will have a job i .
2. My shoes are out of s . I want to buy a new pair.
3. Population(人口) problem is a s problem.
4. You haven't seen each other for a long time, you s write a letter to him.
5. I think there is something w my TV. It doesn't work well.
__________是电影节的发源地。( )
A.日本
B.威尼斯
C.意大利
D.伦敦