— Do you mind if I smoke?

— _____.[ ]

A. Why not?

B. Yes, help yourself.

C. Yes, Go ahead.

D. Yes, but you'd better not.

下列哪项不是甲状腺功能亢进的临床表现()

A．体重下降

B．易激动

C．多食善饥

D．月经量增多

E．疲乏无力