周期性瘫痪合并甲状腺功能亢进，称为_________。
参考答案：甲亢性周期性瘫痪
— You mean the position is still vacant?
— Yes, but you must know our job is very demanding.
— _____.[ ]
A. With pleasure
B. I don't mind
C. Don't mention it
D. That's all right
执行语句s=Len(Mid("Visual Basic",1，6))后，s的值是
A．Visual
B．Basic
C．6
D．11
