大斑病的发病适温为（）度，超过28度对病害有抑制作用；适宜发病的相对湿度90%以上，着对孢子的形成、萌发和侵入都有利。
参考答案：22-25
社会主义民主政治的本质和核心是
A．坚持中 * * 党的领导
B．人民当家作主
C．依法治国
D．权利与义务相统一
用所给词的适当形式填空。
1. —When _____ you _____ ( start) skating?
—At nine o'clock.
2. Jack Chen _____ ( work) as an actor for over thirty years.
3. —I _____ ( see) the film Chicken, Run.
—When and where _____ you _____ (see) it?
—Sorry, I can't remember.
4. More than 15 years has passed since I _____ ( become ) a teacher.
5. My hobby is _____ (collect) all kinds of coins.
