以下哪种方法不是用来测定牙菌斑pH的（）

A.电极接触法

B.毛细吸管法

C.菌斑采样法

D.人工菌斑法

E.埋藏电极遥测法

-Excuse me, but can you tell me which road I should take to the post office?

-______ of the four roads will do.[ ]

A. Any

B. Neither

C. Both

D. Every