1. I have two ____________.     ( knife)

2. Whose ______________ are these ?       ( child )

3. These photos are hers. They are not ____________.     (I)

4. What about ____________ shopping?   (go)

5. The little girl is ____________ on her hat now.     (put)

有关一级预防的描述哪项是正确的()

A．又称临床前预防，使疾病不致发生

B．主要是对疾病早发现、早诊断、早治疗

C．又称临床预防，即及时采取治疗措施

D．主要是对疾病有效治疗，防止疾病恶化

E．又称病因预防，即采取各种措施控制或消除病因与危险因素