— Could you tell me _____ it is from here to the science museum?

— It's about half an hour's walk. [ ]

A. how far

B. how long

C. how soon

急性感染性多发性神经根神经炎吞咽困难时受累的颅神经有（）

A.第Ⅶ对颅神经

B.第Ⅸ对颅神经

C.第Ⅹ对颅神经

D.第Ⅻ对颅神经

E.第Ⅱ对颅神经