脱色疗法使用的药物为（）。

A.40%过氧化脲

B.40%过氧化氢

C.30%过氧化脲

D.30%过氧化氢

E.以上均可

根据句意、首字母及所给英文解释填空。

1. Can you find out the shortest r_______ (the way to go from one place to another) from the

    cinema to the school on the map?

2. There are some flower shops n_______ (not far away).I often go there with my mother.  

3. You go first and I will f_______ (to come or go after) you later.

4. He feels very sad because he f_______ ( not pass) in the maths exam.

5. All the students have to wear their u_______ (a special set of clothes which all members of a

    group wear) on Monday in my school.