以下哪一项不是激光共聚焦显微镜（LSCM）的特点（）

A.可对细胞内部的光学断层扫描成像

B.对样品进行立体、动态观察

C.具备普通光学显微镜和荧光显微镜的功能

D.不能观察活细胞

E.没有光的散射

据句意及单词首字母完成句子。

1. He is h       , so he will pass the exam.

2. Students are s         to keep the classroom clean.

3. She didn't r            home until 11:00. 

4. L        , he found his book that he had lost.

5. To my s           , Tom did come to the party.