职业健康安全管理体系中定义为“评估风险大小以及确定风险是否可容许的全过程”的是( )。

A．风险管理

B．风险评价

C．风俭评估

D．风险分析

按要求,改写下列句子。

1. Maria has got a brother.  (改为一般疑问句,并作肯定回答)

_______ Maria _______ a brother?  

Yes, she ______.

2. I have got an aunt.  (改为否定句)

I ______ ______ an aunt.

3. Linda and her sister have got a big room. (改为一般疑问句,并作否定回答)

_______Linda and her sister ______ a big room?

No, they ______.

4. There is a pen on my desk. (对画线部分提问)

  ______ _______ pens are there on your desk?

5. Have you got a brother or a sister? (根据自己的实际回答)

  ________________________.