癫痫持续状态的特点是（）.

A.癫痫发作或反复发作10分钟

B.癫痫发作或反复发作15分钟

C.癫痫发作或反复发作20分钟

D.癫痫发作或反复发作25分钟

E.癫痫发作或反复发作30分钟

-- The boy is tall enough _____ his age.

--Yes, I was much _____ when I was his age.

A．to; shorter

B．at; taller

C．at; shorter

D．for; shorter