根据汉语意思完成下列句子。

1. What ________ ________ (其他动物) do you like?

2. He sleeps ________ ________ ________(白天期间), 

    but ________ ________ (在晚上) he gets up and eats leaves.

3. Molly is ________ ________ ________(十二岁) now.

4. We have great salad ________ ________ ________(也，而且) soda and cola.

5. I ________ ________(与......打交道) people and money.

6. He never ________ ________(停止谈话).

7. Mr Green ________ ________(努力工作) every day.

8. Yesterday she ______    _______ ______(呆在家里) and _______ ________ ________(阅读).

9. They ________ ________ ________(开晚会)last night.

10. For most kids, the weekend was _______ _______ _______(混合) of fun and work.

病例对照研究的主要优点是（）

A.特别适于对罕见病的研究

B.一次研究可以了解多个因素

C.容易实施

D.省钱省力，出结果快

E.以上均是