针尖样瞳孔是指瞳孔直径小于
A．1mmB．2mmC．2.5mmD．5mmE．6mm
参考答案：A
解析： 针尖样瞳孔是指瞳孔直径小于1mm。
---Do you still remember the accident?
--- Yes. Actually, I have experienced nothing more ________.
A．frighten
B．to be frightening
C．frightened
D．frightening
