-It's very kind of you to help me with my English.

-______.[ ]

A. Don't say so

B. Never mind

C. My pleasure

D. All right

注意力缺陷多动症首选（）

A.哌甲酯

B.卡马西平

C.氟哌啶醇

D.丙戊酸钠

E.ACTH